Home / 8,257.91-12,389.15-3,326.39

Finding the Fourth Proportional to 8,257.91, 12,389.15 and 3,326.39

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Solution

The fourth proportional to 8,257.91, 12,389.15 and 3,326.39 is: 4,990.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.91 : 12,389.15 = 3,326.39 : x
  2. Step 2: Convert to fraction form
    8,257.91/12,389.15 = 3,326.39/x
  3. Step 3: Cross multiply
    8,257.91x = 12,389.15 × 3,326.39
  4. Step 4: Simplify right side
    8,257.91x = 41,211,066.09
  5. Step 5: Solve for x
    x = 41,211,066.09/8,257.91
  6. Step 6: Final answer
    x = 4,990.50

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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.