Home / 11,318.45-16,977.68-3,922.91

Finding the Fourth Proportional to 11,318.45, 16,977.68 and 3,922.91

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Solution

The fourth proportional to 11,318.45, 16,977.68 and 3,922.91 is: 5,884.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.45 : 16,977.68 = 3,922.91 : x
  2. Step 2: Convert to fraction form
    11,318.45/16,977.68 = 3,922.91/x
  3. Step 3: Cross multiply
    11,318.45x = 16,977.68 × 3,922.91
  4. Step 4: Simplify right side
    11,318.45x = 66,602,002.09
  5. Step 5: Solve for x
    x = 66,602,002.09/11,318.45
  6. Step 6: Final answer
    x = 5,884.37

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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.