Home / 11,611.72-17,418.14-3,820.36

Finding the Fourth Proportional to 11,611.72, 17,418.14 and 3,820.36

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Solution

The fourth proportional to 11,611.72, 17,418.14 and 3,820.36 is: 5,730.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,611.72 : 17,418.14 = 3,820.36 : x
  2. Step 2: Convert to fraction form
    11,611.72/17,418.14 = 3,820.36/x
  3. Step 3: Cross multiply
    11,611.72x = 17,418.14 × 3,820.36
  4. Step 4: Simplify right side
    11,611.72x = 66,543,565.33
  5. Step 5: Solve for x
    x = 66,543,565.33/11,611.72
  6. Step 6: Final answer
    x = 5,730.72

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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.