Home / 8,422.24-12,636.60-3,226.90

Finding the Fourth Proportional to 8,422.24, 12,636.60 and 3,226.90

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Solution

The fourth proportional to 8,422.24, 12,636.60 and 3,226.90 is: 4,841.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.24 : 12,636.60 = 3,226.90 : x
  2. Step 2: Convert to fraction form
    8,422.24/12,636.60 = 3,226.90/x
  3. Step 3: Cross multiply
    8,422.24x = 12,636.60 × 3,226.90
  4. Step 4: Simplify right side
    8,422.24x = 40,777,044.54
  5. Step 5: Solve for x
    x = 40,777,044.54/8,422.24
  6. Step 6: Final answer
    x = 4,841.59

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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.