Home / 10,909.20-16,363.80-6,753.90

Finding the Fourth Proportional to 10,909.20, 16,363.80 and 6,753.90

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Solution

The fourth proportional to 10,909.20, 16,363.80 and 6,753.90 is: 10,130.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.20 : 16,363.80 = 6,753.90 : x
  2. Step 2: Convert to fraction form
    10,909.20/16,363.80 = 6,753.90/x
  3. Step 3: Cross multiply
    10,909.20x = 16,363.80 × 6,753.90
  4. Step 4: Simplify right side
    10,909.20x = 110,519,468.82
  5. Step 5: Solve for x
    x = 110,519,468.82/10,909.20
  6. Step 6: Final answer
    x = 10,130.85

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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.