Home / 8,508.24-12,761.28-3,317.76

Finding the Fourth Proportional to 8,508.24, 12,761.28 and 3,317.76

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Solution

The fourth proportional to 8,508.24, 12,761.28 and 3,317.76 is: 4,976.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.24 : 12,761.28 = 3,317.76 : x
  2. Step 2: Convert to fraction form
    8,508.24/12,761.28 = 3,317.76/x
  3. Step 3: Cross multiply
    8,508.24x = 12,761.28 × 3,317.76
  4. Step 4: Simplify right side
    8,508.24x = 42,338,864.33
  5. Step 5: Solve for x
    x = 42,338,864.33/8,508.24
  6. Step 6: Final answer
    x = 4,976.22

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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.