Home / 12,641.31-18,961.29-3,876.26

Finding the Fourth Proportional to 12,641.31, 18,961.29 and 3,876.26

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Solution

The fourth proportional to 12,641.31, 18,961.29 and 3,876.26 is: 5,814.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641.31 : 18,961.29 = 3,876.26 : x
  2. Step 2: Convert to fraction form
    12,641.31/18,961.29 = 3,876.26/x
  3. Step 3: Cross multiply
    12,641.31x = 18,961.29 × 3,876.26
  4. Step 4: Simplify right side
    12,641.31x = 73,498,795.17
  5. Step 5: Solve for x
    x = 73,498,795.17/12,641.31
  6. Step 6: Final answer
    x = 5,814.18

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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.