Home / 13,558.79-20,338.19-3,697.85

Finding the Fourth Proportional to 13,558.79, 20,338.19 and 3,697.85

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Solution

The fourth proportional to 13,558.79, 20,338.19 and 3,697.85 is: 5,546.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.79 : 20,338.19 = 3,697.85 : x
  2. Step 2: Convert to fraction form
    13,558.79/20,338.19 = 3,697.85/x
  3. Step 3: Cross multiply
    13,558.79x = 20,338.19 × 3,697.85
  4. Step 4: Simplify right side
    13,558.79x = 75,207,575.89
  5. Step 5: Solve for x
    x = 75,207,575.89/13,558.79
  6. Step 6: Final answer
    x = 5,546.78

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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.