Home / 12,629.43-18,942.80-5,609.57

Finding the Fourth Proportional to 12,629.43, 18,942.80 and 5,609.57

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Solution

The fourth proportional to 12,629.43, 18,942.80 and 5,609.57 is: 8,413.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.43 : 18,942.80 = 5,609.57 : x
  2. Step 2: Convert to fraction form
    12,629.43/18,942.80 = 5,609.57/x
  3. Step 3: Cross multiply
    12,629.43x = 18,942.80 × 5,609.57
  4. Step 4: Simplify right side
    12,629.43x = 106,260,839.83
  5. Step 5: Solve for x
    x = 106,260,839.83/12,629.43
  6. Step 6: Final answer
    x = 8,413.75

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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.