Home / 10,542.08-15,815.28-3,146.96

Finding the Fourth Proportional to 10,542.08, 15,815.28 and 3,146.96

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Solution

The fourth proportional to 10,542.08, 15,815.28 and 3,146.96 is: 4,721.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,542.08 : 15,815.28 = 3,146.96 : x
  2. Step 2: Convert to fraction form
    10,542.08/15,815.28 = 3,146.96/x
  3. Step 3: Cross multiply
    10,542.08x = 15,815.28 × 3,146.96
  4. Step 4: Simplify right side
    10,542.08x = 49,770,053.55
  5. Step 5: Solve for x
    x = 49,770,053.55/10,542.08
  6. Step 6: Final answer
    x = 4,721.08

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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.