Home / 10,839.62-16,247.05-4,921.02

Finding the Fourth Proportional to 10,839.62, 16,247.05 and 4,921.02

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Solution

The fourth proportional to 10,839.62, 16,247.05 and 4,921.02 is: 7,375.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.62 : 16,247.05 = 4,921.02 : x
  2. Step 2: Convert to fraction form
    10,839.62/16,247.05 = 4,921.02/x
  3. Step 3: Cross multiply
    10,839.62x = 16,247.05 × 4,921.02
  4. Step 4: Simplify right side
    10,839.62x = 79,952,045.69
  5. Step 5: Solve for x
    x = 79,952,045.69/10,839.62
  6. Step 6: Final answer
    x = 7,375.91

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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.