Home / 11,372.90-17,059.39-3,977.32

Finding the Fourth Proportional to 11,372.90, 17,059.39 and 3,977.32

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Solution

The fourth proportional to 11,372.90, 17,059.39 and 3,977.32 is: 5,965.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,372.90 : 17,059.39 = 3,977.32 : x
  2. Step 2: Convert to fraction form
    11,372.90/17,059.39 = 3,977.32/x
  3. Step 3: Cross multiply
    11,372.90x = 17,059.39 × 3,977.32
  4. Step 4: Simplify right side
    11,372.90x = 67,850,653.03
  5. Step 5: Solve for x
    x = 67,850,653.03/11,372.90
  6. Step 6: Final answer
    x = 5,965.99

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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.