Home / 13,745.99-20,608.89-4,380.62

Finding the Fourth Proportional to 13,745.99, 20,608.89 and 4,380.62

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Solution

The fourth proportional to 13,745.99, 20,608.89 and 4,380.62 is: 6,567.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.99 : 20,608.89 = 4,380.62 : x
  2. Step 2: Convert to fraction form
    13,745.99/20,608.89 = 4,380.62/x
  3. Step 3: Cross multiply
    13,745.99x = 20,608.89 × 4,380.62
  4. Step 4: Simplify right side
    13,745.99x = 90,279,715.71
  5. Step 5: Solve for x
    x = 90,279,715.71/13,745.99
  6. Step 6: Final answer
    x = 6,567.71

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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.