Home / 8,082.18-12,115.15-3,403.33

Finding the Fourth Proportional to 8,082.18, 12,115.15 and 3,403.33

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Solution

The fourth proportional to 8,082.18, 12,115.15 and 3,403.33 is: 5,101.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,082.18 : 12,115.15 = 3,403.33 : x
  2. Step 2: Convert to fraction form
    8,082.18/12,115.15 = 3,403.33/x
  3. Step 3: Cross multiply
    8,082.18x = 12,115.15 × 3,403.33
  4. Step 4: Simplify right side
    8,082.18x = 41,231,853.45
  5. Step 5: Solve for x
    x = 41,231,853.45/8,082.18
  6. Step 6: Final answer
    x = 5,101.58

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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.