How do you solve 5/4=10/x?

4 Answers
Shwetank Mauria
Jun 24, 2017

x=8

Explanation:

As 5/4=10/x, we have

5/4xx4=10/x xx4

or 5/cancel4^1xxcancel4^1=40/x

or 5xx x=40/x xx x

or 5xx x=40/cancelx xx cancelx

or 5x=40

or 5x xx 1/5=40xx1/5

or cancel5x xx 1/cancel5=cancel40^8xx1/cancel5^1

or x=8

JS
Jun 25, 2017

x=8

Explanation:

A different approach is to cross multiply:

5x=40

x=40/5

x=8

Kushagra
Jun 25, 2017

Cross multiplying is the easiest.
5*x =10*4
5x=40
x=40/5
x=8

kavya ยท Stefan V.
Jun 26, 2017

Simply by doing cross multiplication, we get x=8.

Explanation:

5/4=10/x

5x=40

x=40/5

x=8

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