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Finding the Fourth Proportional to 16,515.60, 24,772.80 and 6,652.20

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Solution

The fourth proportional to 16,515.60, 24,772.80 and 6,652.20 is: 9,978.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,515.60 : 24,772.80 = 6,652.20 : x
  2. Step 2: Convert to fraction form
    16,515.60/24,772.80 = 6,652.20/x
  3. Step 3: Cross multiply
    16,515.60x = 24,772.80 × 6,652.20
  4. Step 4: Simplify right side
    16,515.60x = 164,793,620.16
  5. Step 5: Solve for x
    x = 164,793,620.16/16,515.60
  6. Step 6: Final answer
    x = 9,978.06

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.