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Finding the Third Proportional to 11,268 and 18,758

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Solution

The third proportional to 11,268 and 18,758 is: 31,226.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,268 : 18,758 = 18,758 : x
  2. Step 2: Convert to fraction form
    11,268/18,758 = 18,758/x
  3. Step 3: Cross multiply
    11,268x = 18,758 × 18,758
  4. Step 4: Simplify right side
    11,268x = 351,862,564
  5. Step 5: Solve for x
    x = 351,862,564/11,268
  6. Step 6: Final answer
    x = 31,226.71

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.