Home / 12,437.38-17,165.73-7,960.90

Finding the Fourth Proportional to 12,437.38, 17,165.73 and 7,960.90

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Solution

The fourth proportional to 12,437.38, 17,165.73 and 7,960.90 is: 10,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.38 : 17,165.73 = 7,960.90 : x
  2. Step 2: Convert to fraction form
    12,437.38/17,165.73 = 7,960.90/x
  3. Step 3: Cross multiply
    12,437.38x = 17,165.73 × 7,960.90
  4. Step 4: Simplify right side
    12,437.38x = 136,654,659.96
  5. Step 5: Solve for x
    x = 136,654,659.96/12,437.38
  6. Step 6: Final answer
    x = 10,987.42

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.