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Finding the Fourth Proportional to 16,691.12, 23,034.24 and 9,239.12

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Solution

The fourth proportional to 16,691.12, 23,034.24 and 9,239.12 is: 12,750.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,691.12 : 23,034.24 = 9,239.12 : x
  2. Step 2: Convert to fraction form
    16,691.12/23,034.24 = 9,239.12/x
  3. Step 3: Cross multiply
    16,691.12x = 23,034.24 × 9,239.12
  4. Step 4: Simplify right side
    16,691.12x = 212,816,107.47
  5. Step 5: Solve for x
    x = 212,816,107.47/16,691.12
  6. Step 6: Final answer
    x = 12,750.26

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.