Home / 8,118.80-12,177.72-2,276.24

Finding the Fourth Proportional to 8,118.80, 12,177.72 and 2,276.24

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Solution

The fourth proportional to 8,118.80, 12,177.72 and 2,276.24 is: 3,414.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.80 : 12,177.72 = 2,276.24 : x
  2. Step 2: Convert to fraction form
    8,118.80/12,177.72 = 2,276.24/x
  3. Step 3: Cross multiply
    8,118.80x = 12,177.72 × 2,276.24
  4. Step 4: Simplify right side
    8,118.80x = 27,719,413.37
  5. Step 5: Solve for x
    x = 27,719,413.37/8,118.80
  6. Step 6: Final answer
    x = 3,414.23

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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.