Home / 8,198.31-12,297.47-3,515.28

Finding the Fourth Proportional to 8,198.31, 12,297.47 and 3,515.28

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Solution

The fourth proportional to 8,198.31, 12,297.47 and 3,515.28 is: 5,272.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198.31 : 12,297.47 = 3,515.28 : x
  2. Step 2: Convert to fraction form
    8,198.31/12,297.47 = 3,515.28/x
  3. Step 3: Cross multiply
    8,198.31x = 12,297.47 × 3,515.28
  4. Step 4: Simplify right side
    8,198.31x = 43,229,050.34
  5. Step 5: Solve for x
    x = 43,229,050.34/8,198.31
  6. Step 6: Final answer
    x = 5,272.92

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Similar ratio
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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.