Home / 13,738.86-20,609.91-4,375.62

Finding the Fourth Proportional to 13,738.86, 20,609.91 and 4,375.62

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Solution

The fourth proportional to 13,738.86, 20,609.91 and 4,375.62 is: 6,563.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.86 : 20,609.91 = 4,375.62 : x
  2. Step 2: Convert to fraction form
    13,738.86/20,609.91 = 4,375.62/x
  3. Step 3: Cross multiply
    13,738.86x = 20,609.91 × 4,375.62
  4. Step 4: Simplify right side
    13,738.86x = 90,181,134.39
  5. Step 5: Solve for x
    x = 90,181,134.39/13,738.86
  6. Step 6: Final answer
    x = 6,563.95

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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.