Home / 8,109.05-12,164.31-2,265.71

Finding the Fourth Proportional to 8,109.05, 12,164.31 and 2,265.71

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Solution

The fourth proportional to 8,109.05, 12,164.31 and 2,265.71 is: 3,398.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.05 : 12,164.31 = 2,265.71 : x
  2. Step 2: Convert to fraction form
    8,109.05/12,164.31 = 2,265.71/x
  3. Step 3: Cross multiply
    8,109.05x = 12,164.31 × 2,265.71
  4. Step 4: Simplify right side
    8,109.05x = 27,560,737.99
  5. Step 5: Solve for x
    x = 27,560,737.99/8,109.05
  6. Step 6: Final answer
    x = 3,398.76

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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.