Home / 12,626.90-18,940.27-3,861.78

Finding the Fourth Proportional to 12,626.90, 18,940.27 and 3,861.78

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Solution

The fourth proportional to 12,626.90, 18,940.27 and 3,861.78 is: 5,792.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.90 : 18,940.27 = 3,861.78 : x
  2. Step 2: Convert to fraction form
    12,626.90/18,940.27 = 3,861.78/x
  3. Step 3: Cross multiply
    12,626.90x = 18,940.27 × 3,861.78
  4. Step 4: Simplify right side
    12,626.90x = 73,143,155.88
  5. Step 5: Solve for x
    x = 73,143,155.88/12,626.90
  6. Step 6: Final answer
    x = 5,792.65

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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.