Home / 8,239.46-12,360.38-2,691.65

Finding the Fourth Proportional to 8,239.46, 12,360.38 and 2,691.65

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Solution

The fourth proportional to 8,239.46, 12,360.38 and 2,691.65 is: 4,037.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.46 : 12,360.38 = 2,691.65 : x
  2. Step 2: Convert to fraction form
    8,239.46/12,360.38 = 2,691.65/x
  3. Step 3: Cross multiply
    8,239.46x = 12,360.38 × 2,691.65
  4. Step 4: Simplify right side
    8,239.46x = 33,269,741.57
  5. Step 5: Solve for x
    x = 33,269,741.57/8,239.46
  6. Step 6: Final answer
    x = 4,037.86

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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.