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Finding the Fourth Proportional to 8,078.94, 11,193.92 and 7,903.98

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Solution

The fourth proportional to 8,078.94, 11,193.92 and 7,903.98 is: 10,951.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.94 : 11,193.92 = 7,903.98 : x
  2. Step 2: Convert to fraction form
    8,078.94/11,193.92 = 7,903.98/x
  3. Step 3: Cross multiply
    8,078.94x = 11,193.92 × 7,903.98
  4. Step 4: Simplify right side
    8,078.94x = 88,476,519.80
  5. Step 5: Solve for x
    x = 88,476,519.80/8,078.94
  6. Step 6: Final answer
    x = 10,951.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.