Question

How do you solve proportions?

Answer 1

One way is to cross multiply and then solve from there.
Example:

10/x = 2/5
(10*5 = 2*x)
50 = 2x
(50/2)
25 = x

10/25 = 2/5

Answer 2

You cross multiply and solve for the unknown variable.

Here's an example:


`\sf(2)/(3)=(6)/(x)`

Cross multiply:


`\sf3*6=2*~x`


`\sf18=2x`

Divide 2 to both sides:


`\sf~x=9`