Home / 12,961.29-19,437.87-4,194.39

Finding the Fourth Proportional to 12,961.29, 19,437.87 and 4,194.39

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Solution

The fourth proportional to 12,961.29, 19,437.87 and 4,194.39 is: 6,290.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.29 : 19,437.87 = 4,194.39 : x
  2. Step 2: Convert to fraction form
    12,961.29/19,437.87 = 4,194.39/x
  3. Step 3: Cross multiply
    12,961.29x = 19,437.87 × 4,194.39
  4. Step 4: Simplify right side
    12,961.29x = 81,530,007.55
  5. Step 5: Solve for x
    x = 81,530,007.55/12,961.29
  6. Step 6: Final answer
    x = 6,290.27

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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.