Home / 7,836.72-11,747.40-3,222.96

Finding the Fourth Proportional to 7,836.72, 11,747.40 and 3,222.96

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Solution

The fourth proportional to 7,836.72, 11,747.40 and 3,222.96 is: 4,831.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836.72 : 11,747.40 = 3,222.96 : x
  2. Step 2: Convert to fraction form
    7,836.72/11,747.40 = 3,222.96/x
  3. Step 3: Cross multiply
    7,836.72x = 11,747.40 × 3,222.96
  4. Step 4: Simplify right side
    7,836.72x = 37,861,400.30
  5. Step 5: Solve for x
    x = 37,861,400.30/7,836.72
  6. Step 6: Final answer
    x = 4,831.28

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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.