Home / 11,970.76-17,964.33-4,179.57

Finding the Fourth Proportional to 11,970.76, 17,964.33 and 4,179.57

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Solution

The fourth proportional to 11,970.76, 17,964.33 and 4,179.57 is: 6,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970.76 : 17,964.33 = 4,179.57 : x
  2. Step 2: Convert to fraction form
    11,970.76/17,964.33 = 4,179.57/x
  3. Step 3: Cross multiply
    11,970.76x = 17,964.33 × 4,179.57
  4. Step 4: Simplify right side
    11,970.76x = 75,083,174.74
  5. Step 5: Solve for x
    x = 75,083,174.74/11,970.76
  6. Step 6: Final answer
    x = 6,272.21

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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.