Home / 10,131.38-15,195.92-2,735.40

Finding the Fourth Proportional to 10,131.38, 15,195.92 and 2,735.40

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Solution

The fourth proportional to 10,131.38, 15,195.92 and 2,735.40 is: 4,102.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.38 : 15,195.92 = 2,735.40 : x
  2. Step 2: Convert to fraction form
    10,131.38/15,195.92 = 2,735.40/x
  3. Step 3: Cross multiply
    10,131.38x = 15,195.92 × 2,735.40
  4. Step 4: Simplify right side
    10,131.38x = 41,566,905.89
  5. Step 5: Solve for x
    x = 41,566,905.89/10,131.38
  6. Step 6: Final answer
    x = 4,102.79

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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.