Home / 10,542.60-15,816.42-3,147.66

Finding the Fourth Proportional to 10,542.60, 15,816.42 and 3,147.66

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Solution

The fourth proportional to 10,542.60, 15,816.42 and 3,147.66 is: 4,722.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,542.60 : 15,816.42 = 3,147.66 : x
  2. Step 2: Convert to fraction form
    10,542.60/15,816.42 = 3,147.66/x
  3. Step 3: Cross multiply
    10,542.60x = 15,816.42 × 3,147.66
  4. Step 4: Simplify right side
    10,542.60x = 49,784,712.58
  5. Step 5: Solve for x
    x = 49,784,712.58/10,542.60
  6. Step 6: Final answer
    x = 4,722.24

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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.