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Finding the Fourth Proportional to 8,855.93, 13,286.96 and 3,929.02

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Solution

The fourth proportional to 8,855.93, 13,286.96 and 3,929.02 is: 5,894.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.93 : 13,286.96 = 3,929.02 : x
  2. Step 2: Convert to fraction form
    8,855.93/13,286.96 = 3,929.02/x
  3. Step 3: Cross multiply
    8,855.93x = 13,286.96 × 3,929.02
  4. Step 4: Simplify right side
    8,855.93x = 52,204,665.14
  5. Step 5: Solve for x
    x = 52,204,665.14/8,855.93
  6. Step 6: Final answer
    x = 5,894.89

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1.5x scale

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.