Home / 18,940.05-28,413.26-5,789.34

Finding the Fourth Proportional to 18,940.05, 28,413.26 and 5,789.34

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Solution

The fourth proportional to 18,940.05, 28,413.26 and 5,789.34 is: 8,684.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.05 : 28,413.26 = 5,789.34 : x
  2. Step 2: Convert to fraction form
    18,940.05/28,413.26 = 5,789.34/x
  3. Step 3: Cross multiply
    18,940.05x = 28,413.26 × 5,789.34
  4. Step 4: Simplify right side
    18,940.05x = 164,494,143.67
  5. Step 5: Solve for x
    x = 164,494,143.67/18,940.05
  6. Step 6: Final answer
    x = 8,684.99

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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.