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Finding the Fourth Proportional to 8,787.86, 13,181.78 and 4,404.29

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Solution

The fourth proportional to 8,787.86, 13,181.78 and 4,404.29 is: 6,606.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.86 : 13,181.78 = 4,404.29 : x
  2. Step 2: Convert to fraction form
    8,787.86/13,181.78 = 4,404.29/x
  3. Step 3: Cross multiply
    8,787.86x = 13,181.78 × 4,404.29
  4. Step 4: Simplify right side
    8,787.86x = 58,056,293.91
  5. Step 5: Solve for x
    x = 58,056,293.91/8,787.86
  6. Step 6: Final answer
    x = 6,606.42

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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.