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Finding the Fourth Proportional to 17.98, 27 and 8.98

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Solution

The fourth proportional to 17.98, 27 and 8.98 is: 13.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.98 : 27 = 8.98 : x
  2. Step 2: Convert to fraction form
    17.98/27 = 8.98/x
  3. Step 3: Cross multiply
    17.98x = 27 × 8.98
  4. Step 4: Simplify right side
    17.98x = 242.39
  5. Step 5: Solve for x
    x = 242.39/17.98
  6. Step 6: Final answer
    x = 13.48

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1.5x scale

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.