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Finding the Fourth Proportional to 18,166.88, 27,091.34 and 18,000.80

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Solution

The fourth proportional to 18,166.88, 27,091.34 and 18,000.80 is: 26,843.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,166.88 : 27,091.34 = 18,000.80 : x
  2. Step 2: Convert to fraction form
    18,166.88/27,091.34 = 18,000.80/x
  3. Step 3: Cross multiply
    18,166.88x = 27,091.34 × 18,000.80
  4. Step 4: Simplify right side
    18,166.88x = 487,665,793.07
  5. Step 5: Solve for x
    x = 487,665,793.07/18,166.88
  6. Step 6: Final answer
    x = 26,843.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.