Home / 11,963.92-17,945.96-4,172.74

Finding the Fourth Proportional to 11,963.92, 17,945.96 and 4,172.74

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Solution

The fourth proportional to 11,963.92, 17,945.96 and 4,172.74 is: 6,259.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,963.92 : 17,945.96 = 4,172.74 : x
  2. Step 2: Convert to fraction form
    11,963.92/17,945.96 = 4,172.74/x
  3. Step 3: Cross multiply
    11,963.92x = 17,945.96 × 4,172.74
  4. Step 4: Simplify right side
    11,963.92x = 74,883,825.13
  5. Step 5: Solve for x
    x = 74,883,825.13/11,963.92
  6. Step 6: Final answer
    x = 6,259.14

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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.