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Finding the Fourth Proportional to 18,591.28, 27,879.84 and 7,495.04

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Solution

The fourth proportional to 18,591.28, 27,879.84 and 7,495.04 is: 11,239.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.28 : 27,879.84 = 7,495.04 : x
  2. Step 2: Convert to fraction form
    18,591.28/27,879.84 = 7,495.04/x
  3. Step 3: Cross multiply
    18,591.28x = 27,879.84 × 7,495.04
  4. Step 4: Simplify right side
    18,591.28x = 208,960,515.99
  5. Step 5: Solve for x
    x = 208,960,515.99/18,591.28
  6. Step 6: Final answer
    x = 11,239.71

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.