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Finding the Fourth Proportional to 13.26, 17.50 and 13.26

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Solution

The fourth proportional to 13.26, 17.50 and 13.26 is: 17.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13.26 : 17.50 = 13.26 : x
  2. Step 2: Convert to fraction form
    13.26/17.50 = 13.26/x
  3. Step 3: Cross multiply
    13.26x = 17.50 × 13.26
  4. Step 4: Simplify right side
    13.26x = 232.05
  5. Step 5: Solve for x
    x = 232.05/13.26
  6. Step 6: Final answer
    x = 17.50

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.