Home / 12,628.20-18,944.42-3,861.06

Finding the Fourth Proportional to 12,628.20, 18,944.42 and 3,861.06

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Solution

The fourth proportional to 12,628.20, 18,944.42 and 3,861.06 is: 5,792.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.20 : 18,944.42 = 3,861.06 : x
  2. Step 2: Convert to fraction form
    12,628.20/18,944.42 = 3,861.06/x
  3. Step 3: Cross multiply
    12,628.20x = 18,944.42 × 3,861.06
  4. Step 4: Simplify right side
    12,628.20x = 73,145,542.29
  5. Step 5: Solve for x
    x = 73,145,542.29/12,628.20
  6. Step 6: Final answer
    x = 5,792.24

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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.