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Finding the Fourth Proportional to 10,085.44, 13,932.13 and 8,082.16

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Solution

The fourth proportional to 10,085.44, 13,932.13 and 8,082.16 is: 11,164.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.44 : 13,932.13 = 8,082.16 : x
  2. Step 2: Convert to fraction form
    10,085.44/13,932.13 = 8,082.16/x
  3. Step 3: Cross multiply
    10,085.44x = 13,932.13 × 8,082.16
  4. Step 4: Simplify right side
    10,085.44x = 112,601,703.80
  5. Step 5: Solve for x
    x = 112,601,703.80/10,085.44
  6. Step 6: Final answer
    x = 11,164.78

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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.