Home / 11,371.20-17,067.60-9,729.60

Finding the Fourth Proportional to 11,371.20, 17,067.60 and 9,729.60

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Solution

The fourth proportional to 11,371.20, 17,067.60 and 9,729.60 is: 14,603.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,371.20 : 17,067.60 = 9,729.60 : x
  2. Step 2: Convert to fraction form
    11,371.20/17,067.60 = 9,729.60/x
  3. Step 3: Cross multiply
    11,371.20x = 17,067.60 × 9,729.60
  4. Step 4: Simplify right side
    11,371.20x = 166,060,920.96
  5. Step 5: Solve for x
    x = 166,060,920.96/11,371.20
  6. Step 6: Final answer
    x = 14,603.64

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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.