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Finding the Third Proportional to 11,887 and 18,695

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Solution

The third proportional to 11,887 and 18,695 is: 29,402.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,887 : 18,695 = 18,695 : x
  2. Step 2: Convert to fraction form
    11,887/18,695 = 18,695/x
  3. Step 3: Cross multiply
    11,887x = 18,695 × 18,695
  4. Step 4: Simplify right side
    11,887x = 349,503,025
  5. Step 5: Solve for x
    x = 349,503,025/11,887
  6. Step 6: Final answer
    x = 29,402.12

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.