Home / 8,107.11-12,155.54-3,424.71

Finding the Fourth Proportional to 8,107.11, 12,155.54 and 3,424.71

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Solution

The fourth proportional to 8,107.11, 12,155.54 and 3,424.71 is: 5,134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107.11 : 12,155.54 = 3,424.71 : x
  2. Step 2: Convert to fraction form
    8,107.11/12,155.54 = 3,424.71/x
  3. Step 3: Cross multiply
    8,107.11x = 12,155.54 × 3,424.71
  4. Step 4: Simplify right side
    8,107.11x = 41,629,182.27
  5. Step 5: Solve for x
    x = 41,629,182.27/8,107.11
  6. Step 6: Final answer
    x = 5,134.90

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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.