Home / 8,180.20-12,270-2,336.80

Finding the Fourth Proportional to 8,180.20, 12,270 and 2,336.80

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Solution

The fourth proportional to 8,180.20, 12,270 and 2,336.80 is: 3,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.20 : 12,270 = 2,336.80 : x
  2. Step 2: Convert to fraction form
    8,180.20/12,270 = 2,336.80/x
  3. Step 3: Cross multiply
    8,180.20x = 12,270 × 2,336.80
  4. Step 4: Simplify right side
    8,180.20x = 28,672,536.00
  5. Step 5: Solve for x
    x = 28,672,536.00/8,180.20
  6. Step 6: Final answer
    x = 3,505.11

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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.