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Finding the Fourth Proportional to 18,704.52, 28,062.42 and 6,858.12

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Solution

The fourth proportional to 18,704.52, 28,062.42 and 6,858.12 is: 10,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.52 : 28,062.42 = 6,858.12 : x
  2. Step 2: Convert to fraction form
    18,704.52/28,062.42 = 6,858.12/x
  3. Step 3: Cross multiply
    18,704.52x = 28,062.42 × 6,858.12
  4. Step 4: Simplify right side
    18,704.52x = 192,455,443.85
  5. Step 5: Solve for x
    x = 192,455,443.85/18,704.52
  6. Step 6: Final answer
    x = 10,289.25

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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.