Home / 8,082.82-11,160.75-5,251.60

Finding the Fourth Proportional to 8,082.82, 11,160.75 and 5,251.60

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Solution

The fourth proportional to 8,082.82, 11,160.75 and 5,251.60 is: 7,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,082.82 : 11,160.75 = 5,251.60 : x
  2. Step 2: Convert to fraction form
    8,082.82/11,160.75 = 5,251.60/x
  3. Step 3: Cross multiply
    8,082.82x = 11,160.75 × 5,251.60
  4. Step 4: Simplify right side
    8,082.82x = 58,611,794.70
  5. Step 5: Solve for x
    x = 58,611,794.70/8,082.82
  6. Step 6: Final answer
    x = 7,251.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.