Home / 7,906.20-11,837.70-6,163.80

Finding the Fourth Proportional to 7,906.20, 11,837.70 and 6,163.80

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Solution

The fourth proportional to 7,906.20, 11,837.70 and 6,163.80 is: 9,228.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.20 : 11,837.70 = 6,163.80 : x
  2. Step 2: Convert to fraction form
    7,906.20/11,837.70 = 6,163.80/x
  3. Step 3: Cross multiply
    7,906.20x = 11,837.70 × 6,163.80
  4. Step 4: Simplify right side
    7,906.20x = 72,965,215.26
  5. Step 5: Solve for x
    x = 72,965,215.26/7,906.20
  6. Step 6: Final answer
    x = 9,228.86

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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.