Verified Answer :

taskmasters

15/21 = 5/x
15 x = 21 5
15x = 105
x = 7

Neuron

If you would like to solve the following proportion 15 / 21 = 5 / x, you can do this as follows:

15 / 21 = 5 / x       /x
15 / 21 x = 5      /21
15 x = 5 21      /15
x = 5 21 / 15
x = 7

The correct result would be C. 7.

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