Home / 12,239.35-18,360.23-3,917.27

Finding the Fourth Proportional to 12,239.35, 18,360.23 and 3,917.27

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Solution

The fourth proportional to 12,239.35, 18,360.23 and 3,917.27 is: 5,876.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.35 : 18,360.23 = 3,917.27 : x
  2. Step 2: Convert to fraction form
    12,239.35/18,360.23 = 3,917.27/x
  3. Step 3: Cross multiply
    12,239.35x = 18,360.23 × 3,917.27
  4. Step 4: Simplify right side
    12,239.35x = 71,921,978.17
  5. Step 5: Solve for x
    x = 71,921,978.17/12,239.35
  6. Step 6: Final answer
    x = 5,876.29

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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.