Home / 10,542.82-15,816.96-3,147.28

Finding the Fourth Proportional to 10,542.82, 15,816.96 and 3,147.28

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Solution

The fourth proportional to 10,542.82, 15,816.96 and 3,147.28 is: 4,721.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,542.82 : 15,816.96 = 3,147.28 : x
  2. Step 2: Convert to fraction form
    10,542.82/15,816.96 = 3,147.28/x
  3. Step 3: Cross multiply
    10,542.82x = 15,816.96 × 3,147.28
  4. Step 4: Simplify right side
    10,542.82x = 49,780,322.78
  5. Step 5: Solve for x
    x = 49,780,322.78/10,542.82
  6. Step 6: Final answer
    x = 4,721.73

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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.