Home / 13,868.96-20,785.32-6,369.80

Finding the Fourth Proportional to 13,868.96, 20,785.32 and 6,369.80

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Solution

The fourth proportional to 13,868.96, 20,785.32 and 6,369.80 is: 9,546.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.96 : 20,785.32 = 6,369.80 : x
  2. Step 2: Convert to fraction form
    13,868.96/20,785.32 = 6,369.80/x
  3. Step 3: Cross multiply
    13,868.96x = 20,785.32 × 6,369.80
  4. Step 4: Simplify right side
    13,868.96x = 132,398,227.41
  5. Step 5: Solve for x
    x = 132,398,227.41/13,868.96
  6. Step 6: Final answer
    x = 9,546.37

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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.