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Finding the Fourth Proportional to 17.36, 26.06 and 13.56

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Solution

The fourth proportional to 17.36, 26.06 and 13.56 is: 20.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.36 : 26.06 = 13.56 : x
  2. Step 2: Convert to fraction form
    17.36/26.06 = 13.56/x
  3. Step 3: Cross multiply
    17.36x = 26.06 × 13.56
  4. Step 4: Simplify right side
    17.36x = 353.37
  5. Step 5: Solve for x
    x = 353.37/17.36
  6. Step 6: Final answer
    x = 20.36

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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.