Home / 8,107.47-12,155.12-3,432.96

Finding the Fourth Proportional to 8,107.47, 12,155.12 and 3,432.96

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Solution

The fourth proportional to 8,107.47, 12,155.12 and 3,432.96 is: 5,146.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107.47 : 12,155.12 = 3,432.96 : x
  2. Step 2: Convert to fraction form
    8,107.47/12,155.12 = 3,432.96/x
  3. Step 3: Cross multiply
    8,107.47x = 12,155.12 × 3,432.96
  4. Step 4: Simplify right side
    8,107.47x = 41,727,979.98
  5. Step 5: Solve for x
    x = 41,727,979.98/8,107.47
  6. Step 6: Final answer
    x = 5,146.86

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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.