The fourth proportional to the numbers 5, 6 and 8 is :
Answer & explanation
Correct answer: option 2
5 : 6 :: 8 : a
⇒ The fourth proportional a,
⇒ 5a = 6 x 8
⇒ 5a = 48
⇒ a = \(\frac{48}{5}\) = 9.6
The fourth proportional to the numbers 5, 6 and 8 is :
Correct answer: option 2
5 : 6 :: 8 : a
⇒ The fourth proportional a,
⇒ 5a = 6 x 8
⇒ 5a = 48
⇒ a = \(\frac{48}{5}\) = 9.6