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Finding the Third Proportional to 6,165 and 8,641.50

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Solution

The third proportional to 6,165 and 8,641.50 is: 12,112.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,165 : 8,641.50 = 8,641.50 : x
  2. Step 2: Convert to fraction form
    6,165/8,641.50 = 8,641.50/x
  3. Step 3: Cross multiply
    6,165x = 8,641.50 × 8,641.50
  4. Step 4: Simplify right side
    6,165x = 74,675,522.25
  5. Step 5: Solve for x
    x = 74,675,522.25/6,165
  6. Step 6: Final answer
    x = 12,112.82

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.