Home / 7,932.28-11,876.52-5,978.56

Finding the Fourth Proportional to 7,932.28, 11,876.52 and 5,978.56

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Solution

The fourth proportional to 7,932.28, 11,876.52 and 5,978.56 is: 8,951.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,932.28 : 11,876.52 = 5,978.56 : x
  2. Step 2: Convert to fraction form
    7,932.28/11,876.52 = 5,978.56/x
  3. Step 3: Cross multiply
    7,932.28x = 11,876.52 × 5,978.56
  4. Step 4: Simplify right side
    7,932.28x = 71,004,487.41
  5. Step 5: Solve for x
    x = 71,004,487.41/7,932.28
  6. Step 6: Final answer
    x = 8,951.33

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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.