Home / 16,811.69-25,221.29-5,125.82

Finding the Fourth Proportional to 16,811.69, 25,221.29 and 5,125.82

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Solution

The fourth proportional to 16,811.69, 25,221.29 and 5,125.82 is: 7,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,811.69 : 25,221.29 = 5,125.82 : x
  2. Step 2: Convert to fraction form
    16,811.69/25,221.29 = 5,125.82/x
  3. Step 3: Cross multiply
    16,811.69x = 25,221.29 × 5,125.82
  4. Step 4: Simplify right side
    16,811.69x = 129,279,830.13
  5. Step 5: Solve for x
    x = 129,279,830.13/16,811.69
  6. Step 6: Final answer
    x = 7,689.88

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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.