Home / 13,690.37-20,537.76-5,365.86

Finding the Fourth Proportional to 13,690.37, 20,537.76 and 5,365.86

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Solution

The fourth proportional to 13,690.37, 20,537.76 and 5,365.86 is: 8,049.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.37 : 20,537.76 = 5,365.86 : x
  2. Step 2: Convert to fraction form
    13,690.37/20,537.76 = 5,365.86/x
  3. Step 3: Cross multiply
    13,690.37x = 20,537.76 × 5,365.86
  4. Step 4: Simplify right side
    13,690.37x = 110,202,744.87
  5. Step 5: Solve for x
    x = 110,202,744.87/13,690.37
  6. Step 6: Final answer
    x = 8,049.66

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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.