Home / 8,961.74-13,442.64-2,721.80

Finding the Fourth Proportional to 8,961.74, 13,442.64 and 2,721.80

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Solution

The fourth proportional to 8,961.74, 13,442.64 and 2,721.80 is: 4,082.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.74 : 13,442.64 = 2,721.80 : x
  2. Step 2: Convert to fraction form
    8,961.74/13,442.64 = 2,721.80/x
  3. Step 3: Cross multiply
    8,961.74x = 13,442.64 × 2,721.80
  4. Step 4: Simplify right side
    8,961.74x = 36,588,177.55
  5. Step 5: Solve for x
    x = 36,588,177.55/8,961.74
  6. Step 6: Final answer
    x = 4,082.71

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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.