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Finding the Fourth Proportional to 9,879.92, 14,815.52 and 4,951.92

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Solution

The fourth proportional to 9,879.92, 14,815.52 and 4,951.92 is: 7,425.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.92 : 14,815.52 = 4,951.92 : x
  2. Step 2: Convert to fraction form
    9,879.92/14,815.52 = 4,951.92/x
  3. Step 3: Cross multiply
    9,879.92x = 14,815.52 × 4,951.92
  4. Step 4: Simplify right side
    9,879.92x = 73,365,269.80
  5. Step 5: Solve for x
    x = 73,365,269.80/9,879.92
  6. Step 6: Final answer
    x = 7,425.69

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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.