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Finding the Fourth Proportional to 8,805.69, 13,208.82 and 3,260.43

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Solution

The fourth proportional to 8,805.69, 13,208.82 and 3,260.43 is: 4,890.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.69 : 13,208.82 = 3,260.43 : x
  2. Step 2: Convert to fraction form
    8,805.69/13,208.82 = 3,260.43/x
  3. Step 3: Cross multiply
    8,805.69x = 13,208.82 × 3,260.43
  4. Step 4: Simplify right side
    8,805.69x = 43,066,432.99
  5. Step 5: Solve for x
    x = 43,066,432.99/8,805.69
  6. Step 6: Final answer
    x = 4,890.75

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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.