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Finding the Fourth Proportional to 16.52, 22.79 and 11.07

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Solution

The fourth proportional to 16.52, 22.79 and 11.07 is: 15.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.52 : 22.79 = 11.07 : x
  2. Step 2: Convert to fraction form
    16.52/22.79 = 11.07/x
  3. Step 3: Cross multiply
    16.52x = 22.79 × 11.07
  4. Step 4: Simplify right side
    16.52x = 252.29
  5. Step 5: Solve for x
    x = 252.29/16.52
  6. Step 6: Final answer
    x = 15.27

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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.