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Finding the Fourth Proportional to 9, 13.49 and 5.95

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Solution

The fourth proportional to 9, 13.49 and 5.95 is: 8.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9 : 13.49 = 5.95 : x
  2. Step 2: Convert to fraction form
    9/13.49 = 5.95/x
  3. Step 3: Cross multiply
    9x = 13.49 × 5.95
  4. Step 4: Simplify right side
    9x = 80.20
  5. Step 5: Solve for x
    x = 80.20/9
  6. Step 6: Final answer
    x = 8.91

Related Problems

Find fourth proportional to 4.50, 6.74 and 2.97
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Similar ratio
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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.