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Finding the Fourth Proportional to 8,179.65, 12,251.01 and 3,787.88

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Solution

The fourth proportional to 8,179.65, 12,251.01 and 3,787.88 is: 5,673.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.65 : 12,251.01 = 3,787.88 : x
  2. Step 2: Convert to fraction form
    8,179.65/12,251.01 = 3,787.88/x
  3. Step 3: Cross multiply
    8,179.65x = 12,251.01 × 3,787.88
  4. Step 4: Simplify right side
    8,179.65x = 46,405,308.71
  5. Step 5: Solve for x
    x = 46,405,308.71/8,179.65
  6. Step 6: Final answer
    x = 5,673.26

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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.