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Finding the Fourth Proportional to 8,269.01, 12,398.95 and 4,310.39

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Solution

The fourth proportional to 8,269.01, 12,398.95 and 4,310.39 is: 6,463.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.01 : 12,398.95 = 4,310.39 : x
  2. Step 2: Convert to fraction form
    8,269.01/12,398.95 = 4,310.39/x
  3. Step 3: Cross multiply
    8,269.01x = 12,398.95 × 4,310.39
  4. Step 4: Simplify right side
    8,269.01x = 53,444,310.09
  5. Step 5: Solve for x
    x = 53,444,310.09/8,269.01
  6. Step 6: Final answer
    x = 6,463.21

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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.