Home / 13,418.66-20,125.67-3,558.94

Finding the Fourth Proportional to 13,418.66, 20,125.67 and 3,558.94

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Solution

The fourth proportional to 13,418.66, 20,125.67 and 3,558.94 is: 5,337.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.66 : 20,125.67 = 3,558.94 : x
  2. Step 2: Convert to fraction form
    13,418.66/20,125.67 = 3,558.94/x
  3. Step 3: Cross multiply
    13,418.66x = 20,125.67 × 3,558.94
  4. Step 4: Simplify right side
    13,418.66x = 71,625,983.88
  5. Step 5: Solve for x
    x = 71,625,983.88/13,418.66
  6. Step 6: Final answer
    x = 5,337.79

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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.