Home / 8,125.80-12,189.46-2,282.38

Finding the Fourth Proportional to 8,125.80, 12,189.46 and 2,282.38

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Solution

The fourth proportional to 8,125.80, 12,189.46 and 2,282.38 is: 3,423.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.80 : 12,189.46 = 2,282.38 : x
  2. Step 2: Convert to fraction form
    8,125.80/12,189.46 = 2,282.38/x
  3. Step 3: Cross multiply
    8,125.80x = 12,189.46 × 2,282.38
  4. Step 4: Simplify right side
    8,125.80x = 27,820,979.71
  5. Step 5: Solve for x
    x = 27,820,979.71/8,125.80
  6. Step 6: Final answer
    x = 3,423.78

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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.