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Finding the Fourth Proportional to 8,443.31, 12,645.92 and 4,064.04

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Solution

The fourth proportional to 8,443.31, 12,645.92 and 4,064.04 is: 6,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.31 : 12,645.92 = 4,064.04 : x
  2. Step 2: Convert to fraction form
    8,443.31/12,645.92 = 4,064.04/x
  3. Step 3: Cross multiply
    8,443.31x = 12,645.92 × 4,064.04
  4. Step 4: Simplify right side
    8,443.31x = 51,393,534.88
  5. Step 5: Solve for x
    x = 51,393,534.88/8,443.31
  6. Step 6: Final answer
    x = 6,086.90

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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.