Home / 8,322.26-12,479.73-4,425.78

Finding the Fourth Proportional to 8,322.26, 12,479.73 and 4,425.78

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Solution

The fourth proportional to 8,322.26, 12,479.73 and 4,425.78 is: 6,636.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.26 : 12,479.73 = 4,425.78 : x
  2. Step 2: Convert to fraction form
    8,322.26/12,479.73 = 4,425.78/x
  3. Step 3: Cross multiply
    8,322.26x = 12,479.73 × 4,425.78
  4. Step 4: Simplify right side
    8,322.26x = 55,232,539.44
  5. Step 5: Solve for x
    x = 55,232,539.44/8,322.26
  6. Step 6: Final answer
    x = 6,636.72

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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.