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Finding the Fourth Proportional to 12.51, 17.27 and 8.88

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Solution

The fourth proportional to 12.51, 17.27 and 8.88 is: 12.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12.51 : 17.27 = 8.88 : x
  2. Step 2: Convert to fraction form
    12.51/17.27 = 8.88/x
  3. Step 3: Cross multiply
    12.51x = 17.27 × 8.88
  4. Step 4: Simplify right side
    12.51x = 153.36
  5. Step 5: Solve for x
    x = 153.36/12.51
  6. Step 6: Final answer
    x = 12.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.