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Finding the Third Proportional to 10,936 and 13,312

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Solution

The third proportional to 10,936 and 13,312 is: 16,204.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,936 : 13,312 = 13,312 : x
  2. Step 2: Convert to fraction form
    10,936/13,312 = 13,312/x
  3. Step 3: Cross multiply
    10,936x = 13,312 × 13,312
  4. Step 4: Simplify right side
    10,936x = 177,209,344
  5. Step 5: Solve for x
    x = 177,209,344/10,936
  6. Step 6: Final answer
    x = 16,204.22

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.