Home / 14,105.79-21,159.09-3,717.54

Finding the Fourth Proportional to 14,105.79, 21,159.09 and 3,717.54

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Solution

The fourth proportional to 14,105.79, 21,159.09 and 3,717.54 is: 5,576.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.79 : 21,159.09 = 3,717.54 : x
  2. Step 2: Convert to fraction form
    14,105.79/21,159.09 = 3,717.54/x
  3. Step 3: Cross multiply
    14,105.79x = 21,159.09 × 3,717.54
  4. Step 4: Simplify right side
    14,105.79x = 78,659,763.44
  5. Step 5: Solve for x
    x = 78,659,763.44/14,105.79
  6. Step 6: Final answer
    x = 5,576.42

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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.