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Finding the Fourth Proportional to 8,396.43, 11,587.12 and 4,619.99

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Solution

The fourth proportional to 8,396.43, 11,587.12 and 4,619.99 is: 6,375.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,396.43 : 11,587.12 = 4,619.99 : x
  2. Step 2: Convert to fraction form
    8,396.43/11,587.12 = 4,619.99/x
  3. Step 3: Cross multiply
    8,396.43x = 11,587.12 × 4,619.99
  4. Step 4: Simplify right side
    8,396.43x = 53,532,297.49
  5. Step 5: Solve for x
    x = 53,532,297.49/8,396.43
  6. Step 6: Final answer
    x = 6,375.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.