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Finding the Third Proportional to 11,726 and 18,805

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Solution

The third proportional to 11,726 and 18,805 is: 30,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726 : 18,805 = 18,805 : x
  2. Step 2: Convert to fraction form
    11,726/18,805 = 18,805/x
  3. Step 3: Cross multiply
    11,726x = 18,805 × 18,805
  4. Step 4: Simplify right side
    11,726x = 353,628,025
  5. Step 5: Solve for x
    x = 353,628,025/11,726
  6. Step 6: Final answer
    x = 30,157.60

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.