Home / 13,722.95-20,591.34-5,408.94

Finding the Fourth Proportional to 13,722.95, 20,591.34 and 5,408.94

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Solution

The fourth proportional to 13,722.95, 20,591.34 and 5,408.94 is: 8,116.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.95 : 20,591.34 = 5,408.94 : x
  2. Step 2: Convert to fraction form
    13,722.95/20,591.34 = 5,408.94/x
  3. Step 3: Cross multiply
    13,722.95x = 20,591.34 × 5,408.94
  4. Step 4: Simplify right side
    13,722.95x = 111,377,322.58
  5. Step 5: Solve for x
    x = 111,377,322.58/13,722.95
  6. Step 6: Final answer
    x = 8,116.14

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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.