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Finding the Third Proportional to 11,864 and 17,888

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Solution

The third proportional to 11,864 and 17,888 is: 26,970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,864 : 17,888 = 17,888 : x
  2. Step 2: Convert to fraction form
    11,864/17,888 = 17,888/x
  3. Step 3: Cross multiply
    11,864x = 17,888 × 17,888
  4. Step 4: Simplify right side
    11,864x = 319,980,544
  5. Step 5: Solve for x
    x = 319,980,544/11,864
  6. Step 6: Final answer
    x = 26,970.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.