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Finding the Fourth Proportional to 8,951.56, 13,429.20 and 2,711.92

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Solution

The fourth proportional to 8,951.56, 13,429.20 and 2,711.92 is: 4,068.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.56 : 13,429.20 = 2,711.92 : x
  2. Step 2: Convert to fraction form
    8,951.56/13,429.20 = 2,711.92/x
  3. Step 3: Cross multiply
    8,951.56x = 13,429.20 × 2,711.92
  4. Step 4: Simplify right side
    8,951.56x = 36,418,916.06
  5. Step 5: Solve for x
    x = 36,418,916.06/8,951.56
  6. Step 6: Final answer
    x = 4,068.44

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Why These Related Problems?

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