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Finding the Fourth Proportional to 8,788.06, 13,188.09 and 3,859.06

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Solution

The fourth proportional to 8,788.06, 13,188.09 and 3,859.06 is: 5,791.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.06 : 13,188.09 = 3,859.06 : x
  2. Step 2: Convert to fraction form
    8,788.06/13,188.09 = 3,859.06/x
  3. Step 3: Cross multiply
    8,788.06x = 13,188.09 × 3,859.06
  4. Step 4: Simplify right side
    8,788.06x = 50,893,630.60
  5. Step 5: Solve for x
    x = 50,893,630.60/8,788.06
  6. Step 6: Final answer
    x = 5,791.22

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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.