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Finding the Third Proportional to 11,958 and 18,553.50

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Solution

The third proportional to 11,958 and 18,553.50 is: 28,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,958 : 18,553.50 = 18,553.50 : x
  2. Step 2: Convert to fraction form
    11,958/18,553.50 = 18,553.50/x
  3. Step 3: Cross multiply
    11,958x = 18,553.50 × 18,553.50
  4. Step 4: Simplify right side
    11,958x = 344,232,362.25
  5. Step 5: Solve for x
    x = 344,232,362.25/11,958
  6. Step 6: Final answer
    x = 28,786.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.