Home / 10,331.90-15,498.14-2,540.69

Finding the Fourth Proportional to 10,331.90, 15,498.14 and 2,540.69

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Solution

The fourth proportional to 10,331.90, 15,498.14 and 2,540.69 is: 3,811.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.90 : 15,498.14 = 2,540.69 : x
  2. Step 2: Convert to fraction form
    10,331.90/15,498.14 = 2,540.69/x
  3. Step 3: Cross multiply
    10,331.90x = 15,498.14 × 2,540.69
  4. Step 4: Simplify right side
    10,331.90x = 39,375,969.32
  5. Step 5: Solve for x
    x = 39,375,969.32/10,331.90
  6. Step 6: Final answer
    x = 3,811.11

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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.