Home / 13,550.28-20,327.62-4,188.12

Finding the Fourth Proportional to 13,550.28, 20,327.62 and 4,188.12

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Solution

The fourth proportional to 13,550.28, 20,327.62 and 4,188.12 is: 6,282.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.28 : 20,327.62 = 4,188.12 : x
  2. Step 2: Convert to fraction form
    13,550.28/20,327.62 = 4,188.12/x
  3. Step 3: Cross multiply
    13,550.28x = 20,327.62 × 4,188.12
  4. Step 4: Simplify right side
    13,550.28x = 85,134,511.87
  5. Step 5: Solve for x
    x = 85,134,511.87/13,550.28
  6. Step 6: Final answer
    x = 6,282.86

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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.