Home / 18,942.24-28,413.50-8,409.43

Finding the Fourth Proportional to 18,942.24, 28,413.50 and 8,409.43

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Solution

The fourth proportional to 18,942.24, 28,413.50 and 8,409.43 is: 12,614.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.24 : 28,413.50 = 8,409.43 : x
  2. Step 2: Convert to fraction form
    18,942.24/28,413.50 = 8,409.43/x
  3. Step 3: Cross multiply
    18,942.24x = 28,413.50 × 8,409.43
  4. Step 4: Simplify right side
    18,942.24x = 238,941,339.31
  5. Step 5: Solve for x
    x = 238,941,339.31/18,942.24
  6. Step 6: Final answer
    x = 12,614.21

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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.