Home / 13,684.64-20,494.38-8,738.96

Finding the Fourth Proportional to 13,684.64, 20,494.38 and 8,738.96

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Solution

The fourth proportional to 13,684.64, 20,494.38 and 8,738.96 is: 13,087.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.64 : 20,494.38 = 8,738.96 : x
  2. Step 2: Convert to fraction form
    13,684.64/20,494.38 = 8,738.96/x
  3. Step 3: Cross multiply
    13,684.64x = 20,494.38 × 8,738.96
  4. Step 4: Simplify right side
    13,684.64x = 179,099,567.04
  5. Step 5: Solve for x
    x = 179,099,567.04/13,684.64
  6. Step 6: Final answer
    x = 13,087.63

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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.