Home / 10,691.09-16,031.99-4,112.66

Finding the Fourth Proportional to 10,691.09, 16,031.99 and 4,112.66

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Solution

The fourth proportional to 10,691.09, 16,031.99 and 4,112.66 is: 6,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,691.09 : 16,031.99 = 4,112.66 : x
  2. Step 2: Convert to fraction form
    10,691.09/16,031.99 = 4,112.66/x
  3. Step 3: Cross multiply
    10,691.09x = 16,031.99 × 4,112.66
  4. Step 4: Simplify right side
    10,691.09x = 65,934,084.18
  5. Step 5: Solve for x
    x = 65,934,084.18/10,691.09
  6. Step 6: Final answer
    x = 6,167.20

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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.