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Finding the Third Proportional to 13,108 and 15,988

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Solution

The third proportional to 13,108 and 15,988 is: 19,500.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108 : 15,988 = 15,988 : x
  2. Step 2: Convert to fraction form
    13,108/15,988 = 15,988/x
  3. Step 3: Cross multiply
    13,108x = 15,988 × 15,988
  4. Step 4: Simplify right side
    13,108x = 255,616,144
  5. Step 5: Solve for x
    x = 255,616,144/13,108
  6. Step 6: Final answer
    x = 19,500.77

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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.