Home / 10,076.28-15,114.42-3,921.72

Finding the Fourth Proportional to 10,076.28, 15,114.42 and 3,921.72

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Solution

The fourth proportional to 10,076.28, 15,114.42 and 3,921.72 is: 5,882.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,076.28 : 15,114.42 = 3,921.72 : x
  2. Step 2: Convert to fraction form
    10,076.28/15,114.42 = 3,921.72/x
  3. Step 3: Cross multiply
    10,076.28x = 15,114.42 × 3,921.72
  4. Step 4: Simplify right side
    10,076.28x = 59,274,523.20
  5. Step 5: Solve for x
    x = 59,274,523.20/10,076.28
  6. Step 6: Final answer
    x = 5,882.58

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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.