Let x = length of fish
Then, ½x = length of body
6 + (½)(½x) = 6 + ¼x = length of tail
Length of fish = length of head + length of body + length of tail
x = 6 + ½x + 6 + ¼x
x = 12 + ¾x
¼x = 12
x= 48"
ANSWER: The length of the fish is 48".