Home / 11,980.29-17,972.60-4,082.37

Finding the Fourth Proportional to 11,980.29, 17,972.60 and 4,082.37

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Solution

The fourth proportional to 11,980.29, 17,972.60 and 4,082.37 is: 6,124.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,980.29 : 17,972.60 = 4,082.37 : x
  2. Step 2: Convert to fraction form
    11,980.29/17,972.60 = 4,082.37/x
  3. Step 3: Cross multiply
    11,980.29x = 17,972.60 × 4,082.37
  4. Step 4: Simplify right side
    11,980.29x = 73,370,839.31
  5. Step 5: Solve for x
    x = 73,370,839.31/11,980.29
  6. Step 6: Final answer
    x = 6,124.29

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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.