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Finding the Third Proportional to 7.25 and 10.63

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Solution

The third proportional to 7.25 and 10.63 is: 15.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.25 : 10.63 = 10.63 : x
  2. Step 2: Convert to fraction form
    7.25/10.63 = 10.63/x
  3. Step 3: Cross multiply
    7.25x = 10.63 × 10.63
  4. Step 4: Simplify right side
    7.25x = 112.89
  5. Step 5: Solve for x
    x = 112.89/7.25
  6. Step 6: Final answer
    x = 15.57

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.