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Finding the Third Proportional to 8,245 and 12,365

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Solution

The third proportional to 8,245 and 12,365 is: 18,543.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245 : 12,365 = 12,365 : x
  2. Step 2: Convert to fraction form
    8,245/12,365 = 12,365/x
  3. Step 3: Cross multiply
    8,245x = 12,365 × 12,365
  4. Step 4: Simplify right side
    8,245x = 152,893,225
  5. Step 5: Solve for x
    x = 152,893,225/8,245
  6. Step 6: Final answer
    x = 18,543.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.