Home / 12,149.92-18,224.56-3,829.60

Finding the Fourth Proportional to 12,149.92, 18,224.56 and 3,829.60

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Solution

The fourth proportional to 12,149.92, 18,224.56 and 3,829.60 is: 5,744.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.92 : 18,224.56 = 3,829.60 : x
  2. Step 2: Convert to fraction form
    12,149.92/18,224.56 = 3,829.60/x
  3. Step 3: Cross multiply
    12,149.92x = 18,224.56 × 3,829.60
  4. Step 4: Simplify right side
    12,149.92x = 69,792,774.98
  5. Step 5: Solve for x
    x = 69,792,774.98/12,149.92
  6. Step 6: Final answer
    x = 5,744.30

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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.