Home / 7,917.52-11,897.82-4,222.36

Finding the Fourth Proportional to 7,917.52, 11,897.82 and 4,222.36

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Solution

The fourth proportional to 7,917.52, 11,897.82 and 4,222.36 is: 6,345.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.52 : 11,897.82 = 4,222.36 : x
  2. Step 2: Convert to fraction form
    7,917.52/11,897.82 = 4,222.36/x
  3. Step 3: Cross multiply
    7,917.52x = 11,897.82 × 4,222.36
  4. Step 4: Simplify right side
    7,917.52x = 50,236,879.26
  5. Step 5: Solve for x
    x = 50,236,879.26/7,917.52
  6. Step 6: Final answer
    x = 6,345.03

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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.