Home / 13,994.14-20,991.42-3,605.86

Finding the Fourth Proportional to 13,994.14, 20,991.42 and 3,605.86

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Solution

The fourth proportional to 13,994.14, 20,991.42 and 3,605.86 is: 5,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.14 : 20,991.42 = 3,605.86 : x
  2. Step 2: Convert to fraction form
    13,994.14/20,991.42 = 3,605.86/x
  3. Step 3: Cross multiply
    13,994.14x = 20,991.42 × 3,605.86
  4. Step 4: Simplify right side
    13,994.14x = 75,692,121.72
  5. Step 5: Solve for x
    x = 75,692,121.72/13,994.14
  6. Step 6: Final answer
    x = 5,408.84

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1.5x scale

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.