Home / 11,785.22-17,677.82-7,405.74

Finding the Fourth Proportional to 11,785.22, 17,677.82 and 7,405.74

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Solution

The fourth proportional to 11,785.22, 17,677.82 and 7,405.74 is: 11,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.22 : 17,677.82 = 7,405.74 : x
  2. Step 2: Convert to fraction form
    11,785.22/17,677.82 = 7,405.74/x
  3. Step 3: Cross multiply
    11,785.22x = 17,677.82 × 7,405.74
  4. Step 4: Simplify right side
    11,785.22x = 130,917,338.69
  5. Step 5: Solve for x
    x = 130,917,338.69/11,785.22
  6. Step 6: Final answer
    x = 11,108.60

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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.