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Finding the Fourth Proportional to 18,804.31, 28,207.88 and 6,324.37

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Solution

The fourth proportional to 18,804.31, 28,207.88 and 6,324.37 is: 9,487.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.31 : 28,207.88 = 6,324.37 : x
  2. Step 2: Convert to fraction form
    18,804.31/28,207.88 = 6,324.37/x
  3. Step 3: Cross multiply
    18,804.31x = 28,207.88 × 6,324.37
  4. Step 4: Simplify right side
    18,804.31x = 178,396,967.89
  5. Step 5: Solve for x
    x = 178,396,967.89/18,804.31
  6. Step 6: Final answer
    x = 9,487.03

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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.