Home / 11,410.80-17,121.66-5,172.72

Finding the Fourth Proportional to 11,410.80, 17,121.66 and 5,172.72

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Solution

The fourth proportional to 11,410.80, 17,121.66 and 5,172.72 is: 7,761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,410.80 : 17,121.66 = 5,172.72 : x
  2. Step 2: Convert to fraction form
    11,410.80/17,121.66 = 5,172.72/x
  3. Step 3: Cross multiply
    11,410.80x = 17,121.66 × 5,172.72
  4. Step 4: Simplify right side
    11,410.80x = 88,565,553.12
  5. Step 5: Solve for x
    x = 88,565,553.12/11,410.80
  6. Step 6: Final answer
    x = 7,761.56

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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.