Home / 7,972.38-11,958.57-5,760.54

Finding the Fourth Proportional to 7,972.38, 11,958.57 and 5,760.54

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Solution

The fourth proportional to 7,972.38, 11,958.57 and 5,760.54 is: 8,640.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.38 : 11,958.57 = 5,760.54 : x
  2. Step 2: Convert to fraction form
    7,972.38/11,958.57 = 5,760.54/x
  3. Step 3: Cross multiply
    7,972.38x = 11,958.57 × 5,760.54
  4. Step 4: Simplify right side
    7,972.38x = 68,887,820.83
  5. Step 5: Solve for x
    x = 68,887,820.83/7,972.38
  6. Step 6: Final answer
    x = 8,640.81

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Similar ratio
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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.