Home / 8,961.38-13,442.09-2,721.44

Finding the Fourth Proportional to 8,961.38, 13,442.09 and 2,721.44

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Solution

The fourth proportional to 8,961.38, 13,442.09 and 2,721.44 is: 4,082.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.38 : 13,442.09 = 2,721.44 : x
  2. Step 2: Convert to fraction form
    8,961.38/13,442.09 = 2,721.44/x
  3. Step 3: Cross multiply
    8,961.38x = 13,442.09 × 2,721.44
  4. Step 4: Simplify right side
    8,961.38x = 36,581,841.41
  5. Step 5: Solve for x
    x = 36,581,841.41/8,961.38
  6. Step 6: Final answer
    x = 4,082.17

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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.