Home / 13,633.37-20,443.50-8,087.43

Finding the Fourth Proportional to 13,633.37, 20,443.50 and 8,087.43

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Solution

The fourth proportional to 13,633.37, 20,443.50 and 8,087.43 is: 12,127.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.37 : 20,443.50 = 8,087.43 : x
  2. Step 2: Convert to fraction form
    13,633.37/20,443.50 = 8,087.43/x
  3. Step 3: Cross multiply
    13,633.37x = 20,443.50 × 8,087.43
  4. Step 4: Simplify right side
    13,633.37x = 165,335,375.21
  5. Step 5: Solve for x
    x = 165,335,375.21/13,633.37
  6. Step 6: Final answer
    x = 12,127.26

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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.