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Finding the Third Proportional to 12.45 and 18.14

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Solution

The third proportional to 12.45 and 18.14 is: 26.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12.45 : 18.14 = 18.14 : x
  2. Step 2: Convert to fraction form
    12.45/18.14 = 18.14/x
  3. Step 3: Cross multiply
    12.45x = 18.14 × 18.14
  4. Step 4: Simplify right side
    12.45x = 329.08
  5. Step 5: Solve for x
    x = 329.08/12.45
  6. Step 6: Final answer
    x = 26.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.