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Finding the Fourth Proportional to 8,881.84, 13,327.72 and 3,951.28

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Solution

The fourth proportional to 8,881.84, 13,327.72 and 3,951.28 is: 5,929.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.84 : 13,327.72 = 3,951.28 : x
  2. Step 2: Convert to fraction form
    8,881.84/13,327.72 = 3,951.28/x
  3. Step 3: Cross multiply
    8,881.84x = 13,327.72 × 3,951.28
  4. Step 4: Simplify right side
    8,881.84x = 52,661,553.48
  5. Step 5: Solve for x
    x = 52,661,553.48/8,881.84
  6. Step 6: Final answer
    x = 5,929.13

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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.