Home / 10,213.28-15,321.36-3,637.52

Finding the Fourth Proportional to 10,213.28, 15,321.36 and 3,637.52

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Solution

The fourth proportional to 10,213.28, 15,321.36 and 3,637.52 is: 5,456.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,213.28 : 15,321.36 = 3,637.52 : x
  2. Step 2: Convert to fraction form
    10,213.28/15,321.36 = 3,637.52/x
  3. Step 3: Cross multiply
    10,213.28x = 15,321.36 × 3,637.52
  4. Step 4: Simplify right side
    10,213.28x = 55,731,753.43
  5. Step 5: Solve for x
    x = 55,731,753.43/10,213.28
  6. Step 6: Final answer
    x = 5,456.79

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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.