Home / 12,626.55-18,939.80-3,861.46

Finding the Fourth Proportional to 12,626.55, 18,939.80 and 3,861.46

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Solution

The fourth proportional to 12,626.55, 18,939.80 and 3,861.46 is: 5,792.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.55 : 18,939.80 = 3,861.46 : x
  2. Step 2: Convert to fraction form
    12,626.55/18,939.80 = 3,861.46/x
  3. Step 3: Cross multiply
    12,626.55x = 18,939.80 × 3,861.46
  4. Step 4: Simplify right side
    12,626.55x = 73,135,280.11
  5. Step 5: Solve for x
    x = 73,135,280.11/12,626.55
  6. Step 6: Final answer
    x = 5,792.18

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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.