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Finding the Fourth Proportional to 8,470.68, 12,699.06 and 4,251.14

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Solution

The fourth proportional to 8,470.68, 12,699.06 and 4,251.14 is: 6,373.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.68 : 12,699.06 = 4,251.14 : x
  2. Step 2: Convert to fraction form
    8,470.68/12,699.06 = 4,251.14/x
  3. Step 3: Cross multiply
    8,470.68x = 12,699.06 × 4,251.14
  4. Step 4: Simplify right side
    8,470.68x = 53,985,418.43
  5. Step 5: Solve for x
    x = 53,985,418.43/8,470.68
  6. Step 6: Final answer
    x = 6,373.21

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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.