Home / 8,086.62-12,121.70-6,134.72

Finding the Fourth Proportional to 8,086.62, 12,121.70 and 6,134.72

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Solution

The fourth proportional to 8,086.62, 12,121.70 and 6,134.72 is: 9,195.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086.62 : 12,121.70 = 6,134.72 : x
  2. Step 2: Convert to fraction form
    8,086.62/12,121.70 = 6,134.72/x
  3. Step 3: Cross multiply
    8,086.62x = 12,121.70 × 6,134.72
  4. Step 4: Simplify right side
    8,086.62x = 74,363,235.42
  5. Step 5: Solve for x
    x = 74,363,235.42/8,086.62
  6. Step 6: Final answer
    x = 9,195.84

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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.