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Finding the Fourth Proportional to 16.76, 25.07 and 14.51

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Solution

The fourth proportional to 16.76, 25.07 and 14.51 is: 21.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.76 : 25.07 = 14.51 : x
  2. Step 2: Convert to fraction form
    16.76/25.07 = 14.51/x
  3. Step 3: Cross multiply
    16.76x = 25.07 × 14.51
  4. Step 4: Simplify right side
    16.76x = 363.57
  5. Step 5: Solve for x
    x = 363.57/16.76
  6. Step 6: Final answer
    x = 21.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.