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Finding the Fourth Proportional to 6,418.97, 8,824.17 and 5,519.41

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Solution

The fourth proportional to 6,418.97, 8,824.17 and 5,519.41 is: 7,587.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.97 : 8,824.17 = 5,519.41 : x
  2. Step 2: Convert to fraction form
    6,418.97/8,824.17 = 5,519.41/x
  3. Step 3: Cross multiply
    6,418.97x = 8,824.17 × 5,519.41
  4. Step 4: Simplify right side
    6,418.97x = 48,704,182.82
  5. Step 5: Solve for x
    x = 48,704,182.82/6,418.97
  6. Step 6: Final answer
    x = 7,587.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.