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Finding the Fourth Proportional to 8,488.40, 12,737.24 and 3,294.48

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Solution

The fourth proportional to 8,488.40, 12,737.24 and 3,294.48 is: 4,943.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.40 : 12,737.24 = 3,294.48 : x
  2. Step 2: Convert to fraction form
    8,488.40/12,737.24 = 3,294.48/x
  3. Step 3: Cross multiply
    8,488.40x = 12,737.24 × 3,294.48
  4. Step 4: Simplify right side
    8,488.40x = 41,962,582.44
  5. Step 5: Solve for x
    x = 41,962,582.44/8,488.40
  6. Step 6: Final answer
    x = 4,943.52

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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.