Home / 8,114.92-12,167.13-3,185.05

Finding the Fourth Proportional to 8,114.92, 12,167.13 and 3,185.05

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Solution

The fourth proportional to 8,114.92, 12,167.13 and 3,185.05 is: 4,775.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.92 : 12,167.13 = 3,185.05 : x
  2. Step 2: Convert to fraction form
    8,114.92/12,167.13 = 3,185.05/x
  3. Step 3: Cross multiply
    8,114.92x = 12,167.13 × 3,185.05
  4. Step 4: Simplify right side
    8,114.92x = 38,752,917.41
  5. Step 5: Solve for x
    x = 38,752,917.41/8,114.92
  6. Step 6: Final answer
    x = 4,775.51

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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.