Home / 12,135.44-18,195.87-8,228.00

Finding the Fourth Proportional to 12,135.44, 18,195.87 and 8,228.00

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Solution

The fourth proportional to 12,135.44, 18,195.87 and 8,228.00 is: 12,337.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.44 : 18,195.87 = 8,228.00 : x
  2. Step 2: Convert to fraction form
    12,135.44/18,195.87 = 8,228.00/x
  3. Step 3: Cross multiply
    12,135.44x = 18,195.87 × 8,228.00
  4. Step 4: Simplify right side
    12,135.44x = 149,715,694.70
  5. Step 5: Solve for x
    x = 149,715,694.70/12,135.44
  6. Step 6: Final answer
    x = 12,337.06

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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.