Home / 11,367.80-17,043.60-5,122.70

Finding the Fourth Proportional to 11,367.80, 17,043.60 and 5,122.70

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Solution

The fourth proportional to 11,367.80, 17,043.60 and 5,122.70 is: 7,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,367.80 : 17,043.60 = 5,122.70 : x
  2. Step 2: Convert to fraction form
    11,367.80/17,043.60 = 5,122.70/x
  3. Step 3: Cross multiply
    11,367.80x = 17,043.60 × 5,122.70
  4. Step 4: Simplify right side
    11,367.80x = 87,309,249.72
  5. Step 5: Solve for x
    x = 87,309,249.72/11,367.80
  6. Step 6: Final answer
    x = 7,680.40

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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.