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Finding the Fourth Proportional to 11.84, 16.33 and 6.98

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Solution

The fourth proportional to 11.84, 16.33 and 6.98 is: 9.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.84 : 16.33 = 6.98 : x
  2. Step 2: Convert to fraction form
    11.84/16.33 = 6.98/x
  3. Step 3: Cross multiply
    11.84x = 16.33 × 6.98
  4. Step 4: Simplify right side
    11.84x = 114.08
  5. Step 5: Solve for x
    x = 114.08/11.84
  6. Step 6: Final answer
    x = 9.64

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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.