Home / 8,247.39-12,371.66-3,317.05

Finding the Fourth Proportional to 8,247.39, 12,371.66 and 3,317.05

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Solution

The fourth proportional to 8,247.39, 12,371.66 and 3,317.05 is: 4,975.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247.39 : 12,371.66 = 3,317.05 : x
  2. Step 2: Convert to fraction form
    8,247.39/12,371.66 = 3,317.05/x
  3. Step 3: Cross multiply
    8,247.39x = 12,371.66 × 3,317.05
  4. Step 4: Simplify right side
    8,247.39x = 41,037,414.80
  5. Step 5: Solve for x
    x = 41,037,414.80/8,247.39
  6. Step 6: Final answer
    x = 4,975.81

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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.