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Finding the Third Proportional to 10,692 and 15,190

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Solution

The third proportional to 10,692 and 15,190 is: 21,580.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,692 : 15,190 = 15,190 : x
  2. Step 2: Convert to fraction form
    10,692/15,190 = 15,190/x
  3. Step 3: Cross multiply
    10,692x = 15,190 × 15,190
  4. Step 4: Simplify right side
    10,692x = 230,736,100
  5. Step 5: Solve for x
    x = 230,736,100/10,692
  6. Step 6: Final answer
    x = 21,580.26

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.