Solving proportions using cross products 1/2=x/18
To solve the proportion 1/2 = x/18 using cross products, we multiply the numerator of the first fraction (1) by the denominator of the second fraction (18) and set it equal to the product of the denominator of the first fraction (2) multiplied by the numerator of the second fraction (x).
So, the equation would be:
1 * 18 = 2 * x
18 = 2x
Next, we divide both sides of the equation by 2 to isolate the variable x:
18/2 = 2x/2
9 = x
Therefore, x = 9.
To solve the proportion 1/2 = x/18 using cross products, you can cross multiply. Here are the steps:
Step 1: Write the proportion: 1/2 = x/18.
Step 2: Multiply the numerator of the first fraction by the denominator of the second fraction and set it equal to the product of the denominator of the first fraction and the numerator of the second fraction. It should look like this:
(1)(18) = (2)(x).
Step 3: Simplify the equation:
18 = 2x.
Step 4: Divide both sides of the equation by 2 to solve for x:
18/2 = x.
Step 5: Simplify the equation:
9 = x.
Therefore, x = 9.
To solve the proportion 1/2 = x/18 using cross products, you need to find the value of x.
Cross products involve multiplying the numerator of one ratio by the denominator of the other ratio. In this case, you will cross multiply by multiplying 1 (numerator of the first ratio) with 18 (denominator of the second ratio) and x (numerator of the second ratio) with 2 (denominator of the first ratio).
So, let's write the equation:
1/2 = x/18
Cross multiplying:
1 * 18 = x * 2
18 = 2x
Now, you need to isolate x. Divide both sides of the equation by 2:
18/2 = 2x/2
9 = x
Therefore, the value of x in the proportion 1/2 = x/18 is 9.