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Finding the Fourth Proportional to 8,463.96, 12,698.55 and 3,787.92

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Solution

The fourth proportional to 8,463.96, 12,698.55 and 3,787.92 is: 5,683.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463.96 : 12,698.55 = 3,787.92 : x
  2. Step 2: Convert to fraction form
    8,463.96/12,698.55 = 3,787.92/x
  3. Step 3: Cross multiply
    8,463.96x = 12,698.55 × 3,787.92
  4. Step 4: Simplify right side
    8,463.96x = 48,101,091.52
  5. Step 5: Solve for x
    x = 48,101,091.52/8,463.96
  6. Step 6: Final answer
    x = 5,683.05

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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.