Home / 11,964.78-17,947.11-5,039.28

Finding the Fourth Proportional to 11,964.78, 17,947.11 and 5,039.28

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Solution

The fourth proportional to 11,964.78, 17,947.11 and 5,039.28 is: 7,558.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,964.78 : 17,947.11 = 5,039.28 : x
  2. Step 2: Convert to fraction form
    11,964.78/17,947.11 = 5,039.28/x
  3. Step 3: Cross multiply
    11,964.78x = 17,947.11 × 5,039.28
  4. Step 4: Simplify right side
    11,964.78x = 90,440,512.48
  5. Step 5: Solve for x
    x = 90,440,512.48/11,964.78
  6. Step 6: Final answer
    x = 7,558.89

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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.