Home / 7,422.58-11,137.16-3,911.73

Finding the Fourth Proportional to 7,422.58, 11,137.16 and 3,911.73

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Solution

The fourth proportional to 7,422.58, 11,137.16 and 3,911.73 is: 5,869.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.58 : 11,137.16 = 3,911.73 : x
  2. Step 2: Convert to fraction form
    7,422.58/11,137.16 = 3,911.73/x
  3. Step 3: Cross multiply
    7,422.58x = 11,137.16 × 3,911.73
  4. Step 4: Simplify right side
    7,422.58x = 43,565,562.89
  5. Step 5: Solve for x
    x = 43,565,562.89/7,422.58
  6. Step 6: Final answer
    x = 5,869.33

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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.