Question

Why can you use cross products to solve the proportion 18/5=x/100

Answer 1

18/5 = x/100
1800 = 5x
----- -----
5 5
360 = x

You can use proportion to solve your equation to figure out the x value so you have corresponding ratios

Answer 2

We can use cross products to solve proportion to get the value of x.

Explanation:

The given proportion is:

`(18)/(5)=(x)/(100)`

On cross multiplying, we get

`x=(18*100)/(5)`

`x=18{*}20`

`x=360`

We can use the given proportion and by cross multiplying we can find the value of x that is 360.