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Finding the Fourth Proportional to 17,998.20, 26,997.30 and 11,429.10

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Solution

The fourth proportional to 17,998.20, 26,997.30 and 11,429.10 is: 17,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.20 : 26,997.30 = 11,429.10 : x
  2. Step 2: Convert to fraction form
    17,998.20/26,997.30 = 11,429.10/x
  3. Step 3: Cross multiply
    17,998.20x = 26,997.30 × 11,429.10
  4. Step 4: Simplify right side
    17,998.20x = 308,554,841.43
  5. Step 5: Solve for x
    x = 308,554,841.43/17,998.20
  6. Step 6: Final answer
    x = 17,143.65

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Similar ratio
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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.