Home / 10,127.47-15,190.13-2,731.47

Finding the Fourth Proportional to 10,127.47, 15,190.13 and 2,731.47

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Solution

The fourth proportional to 10,127.47, 15,190.13 and 2,731.47 is: 4,096.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.47 : 15,190.13 = 2,731.47 : x
  2. Step 2: Convert to fraction form
    10,127.47/15,190.13 = 2,731.47/x
  3. Step 3: Cross multiply
    10,127.47x = 15,190.13 × 2,731.47
  4. Step 4: Simplify right side
    10,127.47x = 41,491,391.22
  5. Step 5: Solve for x
    x = 41,491,391.22/10,127.47
  6. Step 6: Final answer
    x = 4,096.92

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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.