Home / 8,181.72-12,278.07-3,252.42

Finding the Fourth Proportional to 8,181.72, 12,278.07 and 3,252.42

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Solution

The fourth proportional to 8,181.72, 12,278.07 and 3,252.42 is: 4,880.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.72 : 12,278.07 = 3,252.42 : x
  2. Step 2: Convert to fraction form
    8,181.72/12,278.07 = 3,252.42/x
  3. Step 3: Cross multiply
    8,181.72x = 12,278.07 × 3,252.42
  4. Step 4: Simplify right side
    8,181.72x = 39,933,440.43
  5. Step 5: Solve for x
    x = 39,933,440.43/8,181.72
  6. Step 6: Final answer
    x = 4,880.81

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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.