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Finding the Third Proportional to 9 and 11.53

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Solution

The third proportional to 9 and 11.53 is: 14.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9 : 11.53 = 11.53 : x
  2. Step 2: Convert to fraction form
    9/11.53 = 11.53/x
  3. Step 3: Cross multiply
    9x = 11.53 × 11.53
  4. Step 4: Simplify right side
    9x = 132.97
  5. Step 5: Solve for x
    x = 132.97/9
  6. Step 6: Final answer
    x = 14.77

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.