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Finding the Third Proportional to 13,378.50 and 18,792

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Solution

The third proportional to 13,378.50 and 18,792 is: 26,396.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.50 : 18,792 = 18,792 : x
  2. Step 2: Convert to fraction form
    13,378.50/18,792 = 18,792/x
  3. Step 3: Cross multiply
    13,378.50x = 18,792 × 18,792
  4. Step 4: Simplify right side
    13,378.50x = 353,139,264
  5. Step 5: Solve for x
    x = 353,139,264/13,378.50
  6. Step 6: Final answer
    x = 26,396.03

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.