Home / 12,377.72-18,566.61-8,696.39

Finding the Fourth Proportional to 12,377.72, 18,566.61 and 8,696.39

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Solution

The fourth proportional to 12,377.72, 18,566.61 and 8,696.39 is: 13,044.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,377.72 : 18,566.61 = 8,696.39 : x
  2. Step 2: Convert to fraction form
    12,377.72/18,566.61 = 8,696.39/x
  3. Step 3: Cross multiply
    12,377.72x = 18,566.61 × 8,696.39
  4. Step 4: Simplify right side
    12,377.72x = 161,462,481.54
  5. Step 5: Solve for x
    x = 161,462,481.54/12,377.72
  6. Step 6: Final answer
    x = 13,044.61

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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.