Home / 8,320.45-11,481.76-4,542.86

Finding the Fourth Proportional to 8,320.45, 11,481.76 and 4,542.86

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Solution

The fourth proportional to 8,320.45, 11,481.76 and 4,542.86 is: 6,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.45 : 11,481.76 = 4,542.86 : x
  2. Step 2: Convert to fraction form
    8,320.45/11,481.76 = 4,542.86/x
  3. Step 3: Cross multiply
    8,320.45x = 11,481.76 × 4,542.86
  4. Step 4: Simplify right side
    8,320.45x = 52,160,062.62
  5. Step 5: Solve for x
    x = 52,160,062.62/8,320.45
  6. Step 6: Final answer
    x = 6,268.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.