Home / 11,959.79-17,939.75-4,168.53

Finding the Fourth Proportional to 11,959.79, 17,939.75 and 4,168.53

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Solution

The fourth proportional to 11,959.79, 17,939.75 and 4,168.53 is: 6,252.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,959.79 : 17,939.75 = 4,168.53 : x
  2. Step 2: Convert to fraction form
    11,959.79/17,939.75 = 4,168.53/x
  3. Step 3: Cross multiply
    11,959.79x = 17,939.75 × 4,168.53
  4. Step 4: Simplify right side
    11,959.79x = 74,782,365.22
  5. Step 5: Solve for x
    x = 74,782,365.22/11,959.79
  6. Step 6: Final answer
    x = 6,252.82

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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.