Home / 8,723.42-13,082.81-3,791.90

Finding the Fourth Proportional to 8,723.42, 13,082.81 and 3,791.90

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Solution

The fourth proportional to 8,723.42, 13,082.81 and 3,791.90 is: 5,686.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.42 : 13,082.81 = 3,791.90 : x
  2. Step 2: Convert to fraction form
    8,723.42/13,082.81 = 3,791.90/x
  3. Step 3: Cross multiply
    8,723.42x = 13,082.81 × 3,791.90
  4. Step 4: Simplify right side
    8,723.42x = 49,608,622.87
  5. Step 5: Solve for x
    x = 49,608,622.87/8,723.42
  6. Step 6: Final answer
    x = 5,686.84

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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.