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Finding the Fourth Proportional to 19.14, 26.42 and 10.95

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Solution

The fourth proportional to 19.14, 26.42 and 10.95 is: 15.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19.14 : 26.42 = 10.95 : x
  2. Step 2: Convert to fraction form
    19.14/26.42 = 10.95/x
  3. Step 3: Cross multiply
    19.14x = 26.42 × 10.95
  4. Step 4: Simplify right side
    19.14x = 289.40
  5. Step 5: Solve for x
    x = 289.40/19.14
  6. Step 6: Final answer
    x = 15.12

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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.