Home / 10,080.36-15,125.13-5,147.46

Finding the Fourth Proportional to 10,080.36, 15,125.13 and 5,147.46

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Solution

The fourth proportional to 10,080.36, 15,125.13 and 5,147.46 is: 7,723.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.36 : 15,125.13 = 5,147.46 : x
  2. Step 2: Convert to fraction form
    10,080.36/15,125.13 = 5,147.46/x
  3. Step 3: Cross multiply
    10,080.36x = 15,125.13 × 5,147.46
  4. Step 4: Simplify right side
    10,080.36x = 77,856,001.67
  5. Step 5: Solve for x
    x = 77,856,001.67/10,080.36
  6. Step 6: Final answer
    x = 7,723.53

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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.