Home / 11,901.10-17,845.82-4,879.21

Finding the Fourth Proportional to 11,901.10, 17,845.82 and 4,879.21

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Solution

The fourth proportional to 11,901.10, 17,845.82 and 4,879.21 is: 7,316.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,901.10 : 17,845.82 = 4,879.21 : x
  2. Step 2: Convert to fraction form
    11,901.10/17,845.82 = 4,879.21/x
  3. Step 3: Cross multiply
    11,901.10x = 17,845.82 × 4,879.21
  4. Step 4: Simplify right side
    11,901.10x = 87,073,536.34
  5. Step 5: Solve for x
    x = 87,073,536.34/11,901.10
  6. Step 6: Final answer
    x = 7,316.43

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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.