Home / 11,179.80-16,745.40-5,979.60

Finding the Fourth Proportional to 11,179.80, 16,745.40 and 5,979.60

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Solution

The fourth proportional to 11,179.80, 16,745.40 and 5,979.60 is: 8,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.80 : 16,745.40 = 5,979.60 : x
  2. Step 2: Convert to fraction form
    11,179.80/16,745.40 = 5,979.60/x
  3. Step 3: Cross multiply
    11,179.80x = 16,745.40 × 5,979.60
  4. Step 4: Simplify right side
    11,179.80x = 100,130,793.84
  5. Step 5: Solve for x
    x = 100,130,793.84/11,179.80
  6. Step 6: Final answer
    x = 8,956.40

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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.