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Finding the Fourth Proportional to 15,082.92, 22,640.93 and 11,982.85

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Solution

The fourth proportional to 15,082.92, 22,640.93 and 11,982.85 is: 17,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,082.92 : 22,640.93 = 11,982.85 : x
  2. Step 2: Convert to fraction form
    15,082.92/22,640.93 = 11,982.85/x
  3. Step 3: Cross multiply
    15,082.92x = 22,640.93 × 11,982.85
  4. Step 4: Simplify right side
    15,082.92x = 271,302,868.05
  5. Step 5: Solve for x
    x = 271,302,868.05/15,082.92
  6. Step 6: Final answer
    x = 17,987.42

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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.