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Finding the Third Proportional to 13,578 and 18,156

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Solution

The third proportional to 13,578 and 18,156 is: 24,277.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578 : 18,156 = 18,156 : x
  2. Step 2: Convert to fraction form
    13,578/18,156 = 18,156/x
  3. Step 3: Cross multiply
    13,578x = 18,156 × 18,156
  4. Step 4: Simplify right side
    13,578x = 329,640,336
  5. Step 5: Solve for x
    x = 329,640,336/13,578
  6. Step 6: Final answer
    x = 24,277.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.