Home / 8,270.20-12,377.57-6,789.34

Finding the Fourth Proportional to 8,270.20, 12,377.57 and 6,789.34

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Solution

The fourth proportional to 8,270.20, 12,377.57 and 6,789.34 is: 10,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.20 : 12,377.57 = 6,789.34 : x
  2. Step 2: Convert to fraction form
    8,270.20/12,377.57 = 6,789.34/x
  3. Step 3: Cross multiply
    8,270.20x = 12,377.57 × 6,789.34
  4. Step 4: Simplify right side
    8,270.20x = 84,035,517.13
  5. Step 5: Solve for x
    x = 84,035,517.13/8,270.20
  6. Step 6: Final answer
    x = 10,161.25

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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.