Home / 8,290.92-12,436.38-3,357.21

Finding the Fourth Proportional to 8,290.92, 12,436.38 and 3,357.21

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Solution

The fourth proportional to 8,290.92, 12,436.38 and 3,357.21 is: 5,035.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.92 : 12,436.38 = 3,357.21 : x
  2. Step 2: Convert to fraction form
    8,290.92/12,436.38 = 3,357.21/x
  3. Step 3: Cross multiply
    8,290.92x = 12,436.38 × 3,357.21
  4. Step 4: Simplify right side
    8,290.92x = 41,751,539.30
  5. Step 5: Solve for x
    x = 41,751,539.30/8,290.92
  6. Step 6: Final answer
    x = 5,035.82

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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.