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Finding the Third Proportional to 8,655 and 13,230.75

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Solution

The third proportional to 8,655 and 13,230.75 is: 20,225.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655 : 13,230.75 = 13,230.75 : x
  2. Step 2: Convert to fraction form
    8,655/13,230.75 = 13,230.75/x
  3. Step 3: Cross multiply
    8,655x = 13,230.75 × 13,230.75
  4. Step 4: Simplify right side
    8,655x = 175,052,745.56
  5. Step 5: Solve for x
    x = 175,052,745.56/8,655
  6. Step 6: Final answer
    x = 20,225.62

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.