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Finding the Fourth Proportional to 14.19, 19.59 and 8.73

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Solution

The fourth proportional to 14.19, 19.59 and 8.73 is: 12.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.19 : 19.59 = 8.73 : x
  2. Step 2: Convert to fraction form
    14.19/19.59 = 8.73/x
  3. Step 3: Cross multiply
    14.19x = 19.59 × 8.73
  4. Step 4: Simplify right side
    14.19x = 170.99
  5. Step 5: Solve for x
    x = 170.99/14.19
  6. Step 6: Final answer
    x = 12.05

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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.