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Finding the Fourth Proportional to 8,178.97, 11,286.98 and 4,452.97

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Solution

The fourth proportional to 8,178.97, 11,286.98 and 4,452.97 is: 6,145.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.97 : 11,286.98 = 4,452.97 : x
  2. Step 2: Convert to fraction form
    8,178.97/11,286.98 = 4,452.97/x
  3. Step 3: Cross multiply
    8,178.97x = 11,286.98 × 4,452.97
  4. Step 4: Simplify right side
    8,178.97x = 50,260,561.07
  5. Step 5: Solve for x
    x = 50,260,561.07/8,178.97
  6. Step 6: Final answer
    x = 6,145.10

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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.