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Finding the Third Proportional to 11.25 and 14.63

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Solution

The third proportional to 11.25 and 14.63 is: 19.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.25 : 14.63 = 14.63 : x
  2. Step 2: Convert to fraction form
    11.25/14.63 = 14.63/x
  3. Step 3: Cross multiply
    11.25x = 14.63 × 14.63
  4. Step 4: Simplify right side
    11.25x = 213.89
  5. Step 5: Solve for x
    x = 213.89/11.25
  6. Step 6: Final answer
    x = 19.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.