Home / 8,994.30-13,481.55-3,147.90

Finding the Fourth Proportional to 8,994.30, 13,481.55 and 3,147.90

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Solution

The fourth proportional to 8,994.30, 13,481.55 and 3,147.90 is: 4,718.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.30 : 13,481.55 = 3,147.90 : x
  2. Step 2: Convert to fraction form
    8,994.30/13,481.55 = 3,147.90/x
  3. Step 3: Cross multiply
    8,994.30x = 13,481.55 × 3,147.90
  4. Step 4: Simplify right side
    8,994.30x = 42,438,571.25
  5. Step 5: Solve for x
    x = 42,438,571.25/8,994.30
  6. Step 6: Final answer
    x = 4,718.39

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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.