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Finding the Third Proportional to 11,745 and 18,672.75

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Solution

The third proportional to 11,745 and 18,672.75 is: 29,686.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745 : 18,672.75 = 18,672.75 : x
  2. Step 2: Convert to fraction form
    11,745/18,672.75 = 18,672.75/x
  3. Step 3: Cross multiply
    11,745x = 18,672.75 × 18,672.75
  4. Step 4: Simplify right side
    11,745x = 348,671,592.56
  5. Step 5: Solve for x
    x = 348,671,592.56/11,745
  6. Step 6: Final answer
    x = 29,686.81

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.