Home / 8,278.82-12,418.20-5,824.64

Finding the Fourth Proportional to 8,278.82, 12,418.20 and 5,824.64

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Solution

The fourth proportional to 8,278.82, 12,418.20 and 5,824.64 is: 8,736.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.82 : 12,418.20 = 5,824.64 : x
  2. Step 2: Convert to fraction form
    8,278.82/12,418.20 = 5,824.64/x
  3. Step 3: Cross multiply
    8,278.82x = 12,418.20 × 5,824.64
  4. Step 4: Simplify right side
    8,278.82x = 72,331,544.45
  5. Step 5: Solve for x
    x = 72,331,544.45/8,278.82
  6. Step 6: Final answer
    x = 8,736.94

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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.