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Finding the Fourth Proportional to 8,805.99, 13,205.84 and 4,125.20

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Solution

The fourth proportional to 8,805.99, 13,205.84 and 4,125.20 is: 6,186.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.99 : 13,205.84 = 4,125.20 : x
  2. Step 2: Convert to fraction form
    8,805.99/13,205.84 = 4,125.20/x
  3. Step 3: Cross multiply
    8,805.99x = 13,205.84 × 4,125.20
  4. Step 4: Simplify right side
    8,805.99x = 54,476,731.17
  5. Step 5: Solve for x
    x = 54,476,731.17/8,805.99
  6. Step 6: Final answer
    x = 6,186.33

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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.