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Finding the Fourth Proportional to 8,329.64, 12,497.92 and 3,647.24

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Solution

The fourth proportional to 8,329.64, 12,497.92 and 3,647.24 is: 5,472.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329.64 : 12,497.92 = 3,647.24 : x
  2. Step 2: Convert to fraction form
    8,329.64/12,497.92 = 3,647.24/x
  3. Step 3: Cross multiply
    8,329.64x = 12,497.92 × 3,647.24
  4. Step 4: Simplify right side
    8,329.64x = 45,582,913.74
  5. Step 5: Solve for x
    x = 45,582,913.74/8,329.64
  6. Step 6: Final answer
    x = 5,472.38

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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.