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Finding the Third Proportional to 11,380 and 18,268

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Solution

The third proportional to 11,380 and 18,268 is: 29,325.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,380 : 18,268 = 18,268 : x
  2. Step 2: Convert to fraction form
    11,380/18,268 = 18,268/x
  3. Step 3: Cross multiply
    11,380x = 18,268 × 18,268
  4. Step 4: Simplify right side
    11,380x = 333,719,824
  5. Step 5: Solve for x
    x = 333,719,824/11,380
  6. Step 6: Final answer
    x = 29,325.12

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.