Home / 8,169.12-12,245.28-4,006.56

Finding the Fourth Proportional to 8,169.12, 12,245.28 and 4,006.56

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Solution

The fourth proportional to 8,169.12, 12,245.28 and 4,006.56 is: 6,005.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.12 : 12,245.28 = 4,006.56 : x
  2. Step 2: Convert to fraction form
    8,169.12/12,245.28 = 4,006.56/x
  3. Step 3: Cross multiply
    8,169.12x = 12,245.28 × 4,006.56
  4. Step 4: Simplify right side
    8,169.12x = 49,061,449.04
  5. Step 5: Solve for x
    x = 49,061,449.04/8,169.12
  6. Step 6: Final answer
    x = 6,005.72

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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.