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Finding the Third Proportional to 6,915 and 14,847

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Solution

The third proportional to 6,915 and 14,847 is: 31,877.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915 : 14,847 = 14,847 : x
  2. Step 2: Convert to fraction form
    6,915/14,847 = 14,847/x
  3. Step 3: Cross multiply
    6,915x = 14,847 × 14,847
  4. Step 4: Simplify right side
    6,915x = 220,433,409
  5. Step 5: Solve for x
    x = 220,433,409/6,915
  6. Step 6: Final answer
    x = 31,877.57

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.