Home / 11,872.24-17,802.32-3,971.92

Finding the Fourth Proportional to 11,872.24, 17,802.32 and 3,971.92

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Solution

The fourth proportional to 11,872.24, 17,802.32 and 3,971.92 is: 5,955.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.24 : 17,802.32 = 3,971.92 : x
  2. Step 2: Convert to fraction form
    11,872.24/17,802.32 = 3,971.92/x
  3. Step 3: Cross multiply
    11,872.24x = 17,802.32 × 3,971.92
  4. Step 4: Simplify right side
    11,872.24x = 70,709,390.85
  5. Step 5: Solve for x
    x = 70,709,390.85/11,872.24
  6. Step 6: Final answer
    x = 5,955.86

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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.