Home / 8,219.44-11,339.64-5,234.74

Finding the Fourth Proportional to 8,219.44, 11,339.64 and 5,234.74

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Solution

The fourth proportional to 8,219.44, 11,339.64 and 5,234.74 is: 7,221.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.44 : 11,339.64 = 5,234.74 : x
  2. Step 2: Convert to fraction form
    8,219.44/11,339.64 = 5,234.74/x
  3. Step 3: Cross multiply
    8,219.44x = 11,339.64 × 5,234.74
  4. Step 4: Simplify right side
    8,219.44x = 59,360,067.09
  5. Step 5: Solve for x
    x = 59,360,067.09/8,219.44
  6. Step 6: Final answer
    x = 7,221.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.