Home / 8,310.75-12,455.58-3,629.49

Finding the Fourth Proportional to 8,310.75, 12,455.58 and 3,629.49

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Solution

The fourth proportional to 8,310.75, 12,455.58 and 3,629.49 is: 5,439.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310.75 : 12,455.58 = 3,629.49 : x
  2. Step 2: Convert to fraction form
    8,310.75/12,455.58 = 3,629.49/x
  3. Step 3: Cross multiply
    8,310.75x = 12,455.58 × 3,629.49
  4. Step 4: Simplify right side
    8,310.75x = 45,207,403.05
  5. Step 5: Solve for x
    x = 45,207,403.05/8,310.75
  6. Step 6: Final answer
    x = 5,439.63

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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.