Home / 8,073.20-12,109.80-3,900.52

Finding the Fourth Proportional to 8,073.20, 12,109.80 and 3,900.52

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Solution

The fourth proportional to 8,073.20, 12,109.80 and 3,900.52 is: 5,850.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,073.20 : 12,109.80 = 3,900.52 : x
  2. Step 2: Convert to fraction form
    8,073.20/12,109.80 = 3,900.52/x
  3. Step 3: Cross multiply
    8,073.20x = 12,109.80 × 3,900.52
  4. Step 4: Simplify right side
    8,073.20x = 47,234,517.10
  5. Step 5: Solve for x
    x = 47,234,517.10/8,073.20
  6. Step 6: Final answer
    x = 5,850.78

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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.