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Finding the Fourth Proportional to 18,843.03, 28,270.22 and 11,354.72

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Solution

The fourth proportional to 18,843.03, 28,270.22 and 11,354.72 is: 17,035.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.03 : 28,270.22 = 11,354.72 : x
  2. Step 2: Convert to fraction form
    18,843.03/28,270.22 = 11,354.72/x
  3. Step 3: Cross multiply
    18,843.03x = 28,270.22 × 11,354.72
  4. Step 4: Simplify right side
    18,843.03x = 321,000,234.31
  5. Step 5: Solve for x
    x = 321,000,234.31/18,843.03
  6. Step 6: Final answer
    x = 17,035.49

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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.