Home / 8,151.39-12,217.62-3,469.92

Finding the Fourth Proportional to 8,151.39, 12,217.62 and 3,469.92

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Solution

The fourth proportional to 8,151.39, 12,217.62 and 3,469.92 is: 5,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.39 : 12,217.62 = 3,469.92 : x
  2. Step 2: Convert to fraction form
    8,151.39/12,217.62 = 3,469.92/x
  3. Step 3: Cross multiply
    8,151.39x = 12,217.62 × 3,469.92
  4. Step 4: Simplify right side
    8,151.39x = 42,394,163.99
  5. Step 5: Solve for x
    x = 42,394,163.99/8,151.39
  6. Step 6: Final answer
    x = 5,200.85

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1.5x scale

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.