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Finding the Third Proportional to 9.75 and 14.81

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Solution

The third proportional to 9.75 and 14.81 is: 22.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.75 : 14.81 = 14.81 : x
  2. Step 2: Convert to fraction form
    9.75/14.81 = 14.81/x
  3. Step 3: Cross multiply
    9.75x = 14.81 × 14.81
  4. Step 4: Simplify right side
    9.75x = 219.41
  5. Step 5: Solve for x
    x = 219.41/9.75
  6. Step 6: Final answer
    x = 22.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.