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Finding the Third Proportional to 4.57 and 8.63

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Solution

The third proportional to 4.57 and 8.63 is: 16.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.57 : 8.63 = 8.63 : x
  2. Step 2: Convert to fraction form
    4.57/8.63 = 8.63/x
  3. Step 3: Cross multiply
    4.57x = 8.63 × 8.63
  4. Step 4: Simplify right side
    4.57x = 74.55
  5. Step 5: Solve for x
    x = 74.55/4.57
  6. Step 6: Final answer
    x = 16.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.