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Finding the Fourth Proportional to 8,993.78, 13,481.43 and 3,445.62

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Solution

The fourth proportional to 8,993.78, 13,481.43 and 3,445.62 is: 5,164.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.78 : 13,481.43 = 3,445.62 : x
  2. Step 2: Convert to fraction form
    8,993.78/13,481.43 = 3,445.62/x
  3. Step 3: Cross multiply
    8,993.78x = 13,481.43 × 3,445.62
  4. Step 4: Simplify right side
    8,993.78x = 46,451,884.84
  5. Step 5: Solve for x
    x = 46,451,884.84/8,993.78
  6. Step 6: Final answer
    x = 5,164.89

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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.