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Finding the Third Proportional to 8,945 and 11,765.50

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Solution

The third proportional to 8,945 and 11,765.50 is: 15,475.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945 : 11,765.50 = 11,765.50 : x
  2. Step 2: Convert to fraction form
    8,945/11,765.50 = 11,765.50/x
  3. Step 3: Cross multiply
    8,945x = 11,765.50 × 11,765.50
  4. Step 4: Simplify right side
    8,945x = 138,426,990.25
  5. Step 5: Solve for x
    x = 138,426,990.25/8,945
  6. Step 6: Final answer
    x = 15,475.35

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.