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Finding the Fourth Proportional to 18,000.98, 26,998.36 and 8,137.97

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Solution

The fourth proportional to 18,000.98, 26,998.36 and 8,137.97 is: 12,205.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.98 : 26,998.36 = 8,137.97 : x
  2. Step 2: Convert to fraction form
    18,000.98/26,998.36 = 8,137.97/x
  3. Step 3: Cross multiply
    18,000.98x = 26,998.36 × 8,137.97
  4. Step 4: Simplify right side
    18,000.98x = 219,711,668.05
  5. Step 5: Solve for x
    x = 219,711,668.05/18,000.98
  6. Step 6: Final answer
    x = 12,205.54

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1.5x scale

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.