Home / 13,632.75-20,449.15-4,145.15

Finding the Fourth Proportional to 13,632.75, 20,449.15 and 4,145.15

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Solution

The fourth proportional to 13,632.75, 20,449.15 and 4,145.15 is: 6,217.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.75 : 20,449.15 = 4,145.15 : x
  2. Step 2: Convert to fraction form
    13,632.75/20,449.15 = 4,145.15/x
  3. Step 3: Cross multiply
    13,632.75x = 20,449.15 × 4,145.15
  4. Step 4: Simplify right side
    13,632.75x = 84,764,794.12
  5. Step 5: Solve for x
    x = 84,764,794.12/13,632.75
  6. Step 6: Final answer
    x = 6,217.73

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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.