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Finding the Fourth Proportional to 9,991.60, 14,974.80 and 5,062.60

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Solution

The fourth proportional to 9,991.60, 14,974.80 and 5,062.60 is: 7,587.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991.60 : 14,974.80 = 5,062.60 : x
  2. Step 2: Convert to fraction form
    9,991.60/14,974.80 = 5,062.60/x
  3. Step 3: Cross multiply
    9,991.60x = 14,974.80 × 5,062.60
  4. Step 4: Simplify right side
    9,991.60x = 75,811,422.48
  5. Step 5: Solve for x
    x = 75,811,422.48/9,991.60
  6. Step 6: Final answer
    x = 7,587.52

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