Home / 13,545.82-20,320.90-4,183.64

Finding the Fourth Proportional to 13,545.82, 20,320.90 and 4,183.64

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Solution

The fourth proportional to 13,545.82, 20,320.90 and 4,183.64 is: 6,276.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.82 : 20,320.90 = 4,183.64 : x
  2. Step 2: Convert to fraction form
    13,545.82/20,320.90 = 4,183.64/x
  3. Step 3: Cross multiply
    13,545.82x = 20,320.90 × 4,183.64
  4. Step 4: Simplify right side
    13,545.82x = 85,015,340.54
  5. Step 5: Solve for x
    x = 85,015,340.54/13,545.82
  6. Step 6: Final answer
    x = 6,276.13

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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.