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Finding the Fourth Proportional to 8,179.44, 12,269.04 and 7,763.88

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Solution

The fourth proportional to 8,179.44, 12,269.04 and 7,763.88 is: 11,645.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.44 : 12,269.04 = 7,763.88 : x
  2. Step 2: Convert to fraction form
    8,179.44/12,269.04 = 7,763.88/x
  3. Step 3: Cross multiply
    8,179.44x = 12,269.04 × 7,763.88
  4. Step 4: Simplify right side
    8,179.44x = 95,255,354.28
  5. Step 5: Solve for x
    x = 95,255,354.28/8,179.44
  6. Step 6: Final answer
    x = 11,645.71

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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.