Home / 7,863.56-11,797.66-3,181.20

Finding the Fourth Proportional to 7,863.56, 11,797.66 and 3,181.20

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Solution

The fourth proportional to 7,863.56, 11,797.66 and 3,181.20 is: 4,772.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.56 : 11,797.66 = 3,181.20 : x
  2. Step 2: Convert to fraction form
    7,863.56/11,797.66 = 3,181.20/x
  3. Step 3: Cross multiply
    7,863.56x = 11,797.66 × 3,181.20
  4. Step 4: Simplify right side
    7,863.56x = 37,530,715.99
  5. Step 5: Solve for x
    x = 37,530,715.99/7,863.56
  6. Step 6: Final answer
    x = 4,772.74

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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.