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Finding the Fourth Proportional to 8,388.93, 12,584.91 and 3,455.88

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Solution

The fourth proportional to 8,388.93, 12,584.91 and 3,455.88 is: 5,184.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388.93 : 12,584.91 = 3,455.88 : x
  2. Step 2: Convert to fraction form
    8,388.93/12,584.91 = 3,455.88/x
  3. Step 3: Cross multiply
    8,388.93x = 12,584.91 × 3,455.88
  4. Step 4: Simplify right side
    8,388.93x = 43,491,938.77
  5. Step 5: Solve for x
    x = 43,491,938.77/8,388.93
  6. Step 6: Final answer
    x = 5,184.44

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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.