Pretend you have 2 triangles that are similar.
Triangle 1 has sides that are 18 and 24.
Triangle 2 has sides that are x and 6.
What is the value of x?
-6
-8
-30
-72 <--- I chose this answer.
It is not a matter of choosing an answer. You must determine the answer with some solution.
Why did you "choose" that answer?
I would assume that the sides are listed in the corresponding order.
In that case none of the answers given are correct. I got x = 4.5
When I said chose, I meant I GOT THIS ANSWER. Plus, it's supposed to be proportions...
Oh, sorry about the negatives. They suppose to represent numbers or something like that.
What I'm saying is that I did the problem, not guessed at it.
Please forgive me.
Show me the steps that gave you 72, as I said, I got 4.5
x : 18 = 6 : 24 <-- following corresponding pattern
x/18 = 6/24
24x = 108
x = 108/24 = 4.5
Well, I did cross multiplication.
24/x X 6/18
6x = 432
432 / 6 = 72
Or, am I doing something wrong here?
Please?
First of all you don't have an equation, so "cross-multiplication" is a meaningless term.
You did not match up the corresponding numbers, which was my whole point, and objection to this question
your equation should have been:
24/6 = 18/x
or
6/24 = x/18 <--- I used that one
or
24/18 = 6/x
or
18/24 = x/6
In all of those cases I wrote the fractions in corresponding patterns and in each case, the cross-multiplication yields
24x = 108
x = 4.5