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Finding the Third Proportional to 6,912 and 13,944

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Solution

The third proportional to 6,912 and 13,944 is: 28,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912 : 13,944 = 13,944 : x
  2. Step 2: Convert to fraction form
    6,912/13,944 = 13,944/x
  3. Step 3: Cross multiply
    6,912x = 13,944 × 13,944
  4. Step 4: Simplify right side
    6,912x = 194,435,136
  5. Step 5: Solve for x
    x = 194,435,136/6,912
  6. Step 6: Final answer
    x = 28,130.08

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.