Home / 8,318.43-11,481.75-4,782.78

Finding the Fourth Proportional to 8,318.43, 11,481.75 and 4,782.78

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Solution

The fourth proportional to 8,318.43, 11,481.75 and 4,782.78 is: 6,601.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.43 : 11,481.75 = 4,782.78 : x
  2. Step 2: Convert to fraction form
    8,318.43/11,481.75 = 4,782.78/x
  3. Step 3: Cross multiply
    8,318.43x = 11,481.75 × 4,782.78
  4. Step 4: Simplify right side
    8,318.43x = 54,914,684.27
  5. Step 5: Solve for x
    x = 54,914,684.27/8,318.43
  6. Step 6: Final answer
    x = 6,601.57

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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.