Home / 10,654.38-15,988.86-3,728.88

Finding the Fourth Proportional to 10,654.38, 15,988.86 and 3,728.88

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Solution

The fourth proportional to 10,654.38, 15,988.86 and 3,728.88 is: 5,595.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,654.38 : 15,988.86 = 3,728.88 : x
  2. Step 2: Convert to fraction form
    10,654.38/15,988.86 = 3,728.88/x
  3. Step 3: Cross multiply
    10,654.38x = 15,988.86 × 3,728.88
  4. Step 4: Simplify right side
    10,654.38x = 59,620,540.28
  5. Step 5: Solve for x
    x = 59,620,540.28/10,654.38
  6. Step 6: Final answer
    x = 5,595.87

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1.5x scale

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.