Home / 8,451.25-12,680.52-3,260.77

Finding the Fourth Proportional to 8,451.25, 12,680.52 and 3,260.77

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Solution

The fourth proportional to 8,451.25, 12,680.52 and 3,260.77 is: 4,892.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.25 : 12,680.52 = 3,260.77 : x
  2. Step 2: Convert to fraction form
    8,451.25/12,680.52 = 3,260.77/x
  3. Step 3: Cross multiply
    8,451.25x = 12,680.52 × 3,260.77
  4. Step 4: Simplify right side
    8,451.25x = 41,348,259.20
  5. Step 5: Solve for x
    x = 41,348,259.20/8,451.25
  6. Step 6: Final answer
    x = 4,892.56

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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.