Home / 14,793.28-20,413.92-8,078.80

Finding the Fourth Proportional to 14,793.28, 20,413.92 and 8,078.80

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Solution

The fourth proportional to 14,793.28, 20,413.92 and 8,078.80 is: 11,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,793.28 : 20,413.92 = 8,078.80 : x
  2. Step 2: Convert to fraction form
    14,793.28/20,413.92 = 8,078.80/x
  3. Step 3: Cross multiply
    14,793.28x = 20,413.92 × 8,078.80
  4. Step 4: Simplify right side
    14,793.28x = 164,919,976.90
  5. Step 5: Solve for x
    x = 164,919,976.90/14,793.28
  6. Step 6: Final answer
    x = 11,148.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.