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Finding the Third Proportional to 9.10 and 10.18

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Solution

The third proportional to 9.10 and 10.18 is: 11.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.10 : 10.18 = 10.18 : x
  2. Step 2: Convert to fraction form
    9.10/10.18 = 10.18/x
  3. Step 3: Cross multiply
    9.10x = 10.18 × 10.18
  4. Step 4: Simplify right side
    9.10x = 103.70
  5. Step 5: Solve for x
    x = 103.70/9.10
  6. Step 6: Final answer
    x = 11.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.