The fourth proportional to 10, 12, 15 is :
Answer & explanation
Correct answer: option 3
Here,
10 : 12 : 15 : x
⇒ The fourth proportional x,
⇒ 10x = 12 x 15
⇒ 10x = 180
⇒ x = 18.
The fourth proportional to 10, 12, 15 is :
Correct answer: option 3
Here,
10 : 12 : 15 : x
⇒ The fourth proportional x,
⇒ 10x = 12 x 15
⇒ 10x = 180
⇒ x = 18.