Home / 12,098.22-18,147.87-3,778.40

Finding the Fourth Proportional to 12,098.22, 18,147.87 and 3,778.40

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Solution

The fourth proportional to 12,098.22, 18,147.87 and 3,778.40 is: 5,667.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,098.22 : 18,147.87 = 3,778.40 : x
  2. Step 2: Convert to fraction form
    12,098.22/18,147.87 = 3,778.40/x
  3. Step 3: Cross multiply
    12,098.22x = 18,147.87 × 3,778.40
  4. Step 4: Simplify right side
    12,098.22x = 68,569,912.01
  5. Step 5: Solve for x
    x = 68,569,912.01/12,098.22
  6. Step 6: Final answer
    x = 5,667.77

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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.