Home / 11,131.04-16,691.28-4,108.76

Finding the Fourth Proportional to 11,131.04, 16,691.28 and 4,108.76

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Solution

The fourth proportional to 11,131.04, 16,691.28 and 4,108.76 is: 6,161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.04 : 16,691.28 = 4,108.76 : x
  2. Step 2: Convert to fraction form
    11,131.04/16,691.28 = 4,108.76/x
  3. Step 3: Cross multiply
    11,131.04x = 16,691.28 × 4,108.76
  4. Step 4: Simplify right side
    11,131.04x = 68,580,463.61
  5. Step 5: Solve for x
    x = 68,580,463.61/11,131.04
  6. Step 6: Final answer
    x = 6,161.19

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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.