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Finding the Fourth Proportional to 10,881.52, 15,016.10 and 6,165.70

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Solution

The fourth proportional to 10,881.52, 15,016.10 and 6,165.70 is: 8,508.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.52 : 15,016.10 = 6,165.70 : x
  2. Step 2: Convert to fraction form
    10,881.52/15,016.10 = 6,165.70/x
  3. Step 3: Cross multiply
    10,881.52x = 15,016.10 × 6,165.70
  4. Step 4: Simplify right side
    10,881.52x = 92,584,767.77
  5. Step 5: Solve for x
    x = 92,584,767.77/10,881.52
  6. Step 6: Final answer
    x = 8,508.44

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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.