Home / 7,889.83-11,842.56-4,192.09

Finding the Fourth Proportional to 7,889.83, 11,842.56 and 4,192.09

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Solution

The fourth proportional to 7,889.83, 11,842.56 and 4,192.09 is: 6,292.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.83 : 11,842.56 = 4,192.09 : x
  2. Step 2: Convert to fraction form
    7,889.83/11,842.56 = 4,192.09/x
  3. Step 3: Cross multiply
    7,889.83x = 11,842.56 × 4,192.09
  4. Step 4: Simplify right side
    7,889.83x = 49,645,047.74
  5. Step 5: Solve for x
    x = 49,645,047.74/7,889.83
  6. Step 6: Final answer
    x = 6,292.29

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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.