Home / 8,082.28-12,134.30-4,189.80

Finding the Fourth Proportional to 8,082.28, 12,134.30 and 4,189.80

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Solution

The fourth proportional to 8,082.28, 12,134.30 and 4,189.80 is: 6,290.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,082.28 : 12,134.30 = 4,189.80 : x
  2. Step 2: Convert to fraction form
    8,082.28/12,134.30 = 4,189.80/x
  3. Step 3: Cross multiply
    8,082.28x = 12,134.30 × 4,189.80
  4. Step 4: Simplify right side
    8,082.28x = 50,840,290.14
  5. Step 5: Solve for x
    x = 50,840,290.14/8,082.28
  6. Step 6: Final answer
    x = 6,290.34

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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.