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Finding the Fourth Proportional to 8,469.77, 12,704.67 and 3,536.72

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Solution

The fourth proportional to 8,469.77, 12,704.67 and 3,536.72 is: 5,305.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.77 : 12,704.67 = 3,536.72 : x
  2. Step 2: Convert to fraction form
    8,469.77/12,704.67 = 3,536.72/x
  3. Step 3: Cross multiply
    8,469.77x = 12,704.67 × 3,536.72
  4. Step 4: Simplify right side
    8,469.77x = 44,932,842.80
  5. Step 5: Solve for x
    x = 44,932,842.80/8,469.77
  6. Step 6: Final answer
    x = 5,305.08

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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.