Home / 8,186.36-12,269.20-3,500.80

Finding the Fourth Proportional to 8,186.36, 12,269.20 and 3,500.80

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Solution

The fourth proportional to 8,186.36, 12,269.20 and 3,500.80 is: 5,246.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186.36 : 12,269.20 = 3,500.80 : x
  2. Step 2: Convert to fraction form
    8,186.36/12,269.20 = 3,500.80/x
  3. Step 3: Cross multiply
    8,186.36x = 12,269.20 × 3,500.80
  4. Step 4: Simplify right side
    8,186.36x = 42,952,015.36
  5. Step 5: Solve for x
    x = 42,952,015.36/8,186.36
  6. Step 6: Final answer
    x = 5,246.78

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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.