Find the proportions
X/12=3/4
X/12=3/4
Cross multiply.
4x = 36
Solve for x.
To find the proportion, you need to cross-multiply and then solve for the variable.
The given proportion is X/12 = 3/4.
To cross-multiply, multiply the numerator of the first fraction with the denominator of the second fraction and vice versa, like this:
(X)(4) = (12)(3)
Now, simplify both sides of the equation:
4X = 36
To solve for X, divide both sides of the equation by 4:
4X/4 = 36/4
X = 9
Therefore, the value of X that satisfies the proportion X/12 = 3/4 is X = 9.