Home / 10,691.26-16,036.91-4,120.54

Finding the Fourth Proportional to 10,691.26, 16,036.91 and 4,120.54

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Solution

The fourth proportional to 10,691.26, 16,036.91 and 4,120.54 is: 6,180.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,691.26 : 16,036.91 = 4,120.54 : x
  2. Step 2: Convert to fraction form
    10,691.26/16,036.91 = 4,120.54/x
  3. Step 3: Cross multiply
    10,691.26x = 16,036.91 × 4,120.54
  4. Step 4: Simplify right side
    10,691.26x = 66,080,729.13
  5. Step 5: Solve for x
    x = 66,080,729.13/10,691.26
  6. Step 6: Final answer
    x = 6,180.82

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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.