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Finding the Fourth Proportional to 14.69, 22 and 10.89

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Solution

The fourth proportional to 14.69, 22 and 10.89 is: 16.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.69 : 22 = 10.89 : x
  2. Step 2: Convert to fraction form
    14.69/22 = 10.89/x
  3. Step 3: Cross multiply
    14.69x = 22 × 10.89
  4. Step 4: Simplify right side
    14.69x = 239.58
  5. Step 5: Solve for x
    x = 239.58/14.69
  6. Step 6: Final answer
    x = 16.31

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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.