Home / 11,131.60-16,700.25-8,204.90

Finding the Fourth Proportional to 11,131.60, 16,700.25 and 8,204.90

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Solution

The fourth proportional to 11,131.60, 16,700.25 and 8,204.90 is: 12,309.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.60 : 16,700.25 = 8,204.90 : x
  2. Step 2: Convert to fraction form
    11,131.60/16,700.25 = 8,204.90/x
  3. Step 3: Cross multiply
    11,131.60x = 16,700.25 × 8,204.90
  4. Step 4: Simplify right side
    11,131.60x = 137,023,805.42
  5. Step 5: Solve for x
    x = 137,023,805.42/11,131.60
  6. Step 6: Final answer
    x = 12,309.44

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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.