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Finding the Third Proportional to 4.72 and 9.50

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Solution

The third proportional to 4.72 and 9.50 is: 19.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.72 : 9.50 = 9.50 : x
  2. Step 2: Convert to fraction form
    4.72/9.50 = 9.50/x
  3. Step 3: Cross multiply
    4.72x = 9.50 × 9.50
  4. Step 4: Simplify right side
    4.72x = 90.25
  5. Step 5: Solve for x
    x = 90.25/4.72
  6. Step 6: Final answer
    x = 19.13

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Why These Related Problems?

These problems maintain the same ratio (2.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.