Home / 8,286.89-11,440.14-6,394.22

Finding the Fourth Proportional to 8,286.89, 11,440.14 and 6,394.22

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Solution

The fourth proportional to 8,286.89, 11,440.14 and 6,394.22 is: 8,827.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286.89 : 11,440.14 = 6,394.22 : x
  2. Step 2: Convert to fraction form
    8,286.89/11,440.14 = 6,394.22/x
  3. Step 3: Cross multiply
    8,286.89x = 11,440.14 × 6,394.22
  4. Step 4: Simplify right side
    8,286.89x = 73,150,771.99
  5. Step 5: Solve for x
    x = 73,150,771.99/8,286.89
  6. Step 6: Final answer
    x = 8,827.29

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Double scale
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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.