Home / 8,215.07-12,326.74-3,286.13

Finding the Fourth Proportional to 8,215.07, 12,326.74 and 3,286.13

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Solution

The fourth proportional to 8,215.07, 12,326.74 and 3,286.13 is: 4,930.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.07 : 12,326.74 = 3,286.13 : x
  2. Step 2: Convert to fraction form
    8,215.07/12,326.74 = 3,286.13/x
  3. Step 3: Cross multiply
    8,215.07x = 12,326.74 × 3,286.13
  4. Step 4: Simplify right side
    8,215.07x = 40,507,200.27
  5. Step 5: Solve for x
    x = 40,507,200.27/8,215.07
  6. Step 6: Final answer
    x = 4,930.84

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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.