Home / 11,921.28-17,882.24-4,524.80

Finding the Fourth Proportional to 11,921.28, 17,882.24 and 4,524.80

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Solution

The fourth proportional to 11,921.28, 17,882.24 and 4,524.80 is: 6,787.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921.28 : 17,882.24 = 4,524.80 : x
  2. Step 2: Convert to fraction form
    11,921.28/17,882.24 = 4,524.80/x
  3. Step 3: Cross multiply
    11,921.28x = 17,882.24 × 4,524.80
  4. Step 4: Simplify right side
    11,921.28x = 80,913,559.55
  5. Step 5: Solve for x
    x = 80,913,559.55/11,921.28
  6. Step 6: Final answer
    x = 6,787.32

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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.