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Finding the Fourth Proportional to 19,287.44, 28,935.60 and 8,194.48

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Solution

The fourth proportional to 19,287.44, 28,935.60 and 8,194.48 is: 12,293.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.44 : 28,935.60 = 8,194.48 : x
  2. Step 2: Convert to fraction form
    19,287.44/28,935.60 = 8,194.48/x
  3. Step 3: Cross multiply
    19,287.44x = 28,935.60 × 8,194.48
  4. Step 4: Simplify right side
    19,287.44x = 237,112,195.49
  5. Step 5: Solve for x
    x = 237,112,195.49/19,287.44
  6. Step 6: Final answer
    x = 12,293.61

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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.