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Finding the Fourth Proportional to 8,805.98, 13,221.57 and 7,723.41

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Solution

The fourth proportional to 8,805.98, 13,221.57 and 7,723.41 is: 11,596.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.98 : 13,221.57 = 7,723.41 : x
  2. Step 2: Convert to fraction form
    8,805.98/13,221.57 = 7,723.41/x
  3. Step 3: Cross multiply
    8,805.98x = 13,221.57 × 7,723.41
  4. Step 4: Simplify right side
    8,805.98x = 102,115,605.95
  5. Step 5: Solve for x
    x = 102,115,605.95/8,805.98
  6. Step 6: Final answer
    x = 11,596.17

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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.