Home / 8,481.15-12,726.24-6,386.76

Finding the Fourth Proportional to 8,481.15, 12,726.24 and 6,386.76

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Solution

The fourth proportional to 8,481.15, 12,726.24 and 6,386.76 is: 9,583.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.15 : 12,726.24 = 6,386.76 : x
  2. Step 2: Convert to fraction form
    8,481.15/12,726.24 = 6,386.76/x
  3. Step 3: Cross multiply
    8,481.15x = 12,726.24 × 6,386.76
  4. Step 4: Simplify right side
    8,481.15x = 81,279,440.58
  5. Step 5: Solve for x
    x = 81,279,440.58/8,481.15
  6. Step 6: Final answer
    x = 9,583.54

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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.