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Finding the Fourth Proportional to 8,324.76, 12,488.49 and 3,886.86

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Solution

The fourth proportional to 8,324.76, 12,488.49 and 3,886.86 is: 5,830.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,324.76 : 12,488.49 = 3,886.86 : x
  2. Step 2: Convert to fraction form
    8,324.76/12,488.49 = 3,886.86/x
  3. Step 3: Cross multiply
    8,324.76x = 12,488.49 × 3,886.86
  4. Step 4: Simplify right side
    8,324.76x = 48,541,012.24
  5. Step 5: Solve for x
    x = 48,541,012.24/8,324.76
  6. Step 6: Final answer
    x = 5,830.92

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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.