Home / 8,481.20-11,701.26-5,122.76

Finding the Fourth Proportional to 8,481.20, 11,701.26 and 5,122.76

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Solution

The fourth proportional to 8,481.20, 11,701.26 and 5,122.76 is: 7,067.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.20 : 11,701.26 = 5,122.76 : x
  2. Step 2: Convert to fraction form
    8,481.20/11,701.26 = 5,122.76/x
  3. Step 3: Cross multiply
    8,481.20x = 11,701.26 × 5,122.76
  4. Step 4: Simplify right side
    8,481.20x = 59,942,746.68
  5. Step 5: Solve for x
    x = 59,942,746.68/8,481.20
  6. Step 6: Final answer
    x = 7,067.72

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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.