Question

find the third proportion of 5 and 15
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Answer 1

Answer:

15:c

Step-by-step explanation:

such that a:b=b:c

5:15=15:c

Answer 2

Answer:

= 5:15::15:x

= 5× x= 15×15

= 5x= 225

=x=45

Step-by-step explanation:

Let the third proportional to 5 and 15 be X.

Then , the fourth proportional to 5,15,15 is x.

=5:15::15: x

= 5×x= 15×15

=5x= 225

= x= 45.