Home / 8,456.22-12,684.33-2,612.70

Finding the Fourth Proportional to 8,456.22, 12,684.33 and 2,612.70

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Solution

The fourth proportional to 8,456.22, 12,684.33 and 2,612.70 is: 3,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.22 : 12,684.33 = 2,612.70 : x
  2. Step 2: Convert to fraction form
    8,456.22/12,684.33 = 2,612.70/x
  3. Step 3: Cross multiply
    8,456.22x = 12,684.33 × 2,612.70
  4. Step 4: Simplify right side
    8,456.22x = 33,140,348.99
  5. Step 5: Solve for x
    x = 33,140,348.99/8,456.22
  6. Step 6: Final answer
    x = 3,919.05

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Similar ratio
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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.