Home / 10,139.44-15,209.11-2,743.87

Finding the Fourth Proportional to 10,139.44, 15,209.11 and 2,743.87

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Solution

The fourth proportional to 10,139.44, 15,209.11 and 2,743.87 is: 4,115.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,139.44 : 15,209.11 = 2,743.87 : x
  2. Step 2: Convert to fraction form
    10,139.44/15,209.11 = 2,743.87/x
  3. Step 3: Cross multiply
    10,139.44x = 15,209.11 × 2,743.87
  4. Step 4: Simplify right side
    10,139.44x = 41,731,820.66
  5. Step 5: Solve for x
    x = 41,731,820.66/10,139.44
  6. Step 6: Final answer
    x = 4,115.79

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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.