Home / 10,961.20-16,441.80-3,565.90

Finding the Fourth Proportional to 10,961.20, 16,441.80 and 3,565.90

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Solution

The fourth proportional to 10,961.20, 16,441.80 and 3,565.90 is: 5,348.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.20 : 16,441.80 = 3,565.90 : x
  2. Step 2: Convert to fraction form
    10,961.20/16,441.80 = 3,565.90/x
  3. Step 3: Cross multiply
    10,961.20x = 16,441.80 × 3,565.90
  4. Step 4: Simplify right side
    10,961.20x = 58,629,814.62
  5. Step 5: Solve for x
    x = 58,629,814.62/10,961.20
  6. Step 6: Final answer
    x = 5,348.85

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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.