Home / 8,517.15-12,770.56-3,836.36

Finding the Fourth Proportional to 8,517.15, 12,770.56 and 3,836.36

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Solution

The fourth proportional to 8,517.15, 12,770.56 and 3,836.36 is: 5,752.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517.15 : 12,770.56 = 3,836.36 : x
  2. Step 2: Convert to fraction form
    8,517.15/12,770.56 = 3,836.36/x
  3. Step 3: Cross multiply
    8,517.15x = 12,770.56 × 3,836.36
  4. Step 4: Simplify right side
    8,517.15x = 48,992,502.28
  5. Step 5: Solve for x
    x = 48,992,502.28/8,517.15
  6. Step 6: Final answer
    x = 5,752.22

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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.