Home / 12,929.82-19,394.10-4,164.54

Finding the Fourth Proportional to 12,929.82, 19,394.10 and 4,164.54

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Solution

The fourth proportional to 12,929.82, 19,394.10 and 4,164.54 is: 6,246.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.82 : 19,394.10 = 4,164.54 : x
  2. Step 2: Convert to fraction form
    12,929.82/19,394.10 = 4,164.54/x
  3. Step 3: Cross multiply
    12,929.82x = 19,394.10 × 4,164.54
  4. Step 4: Simplify right side
    12,929.82x = 80,767,505.21
  5. Step 5: Solve for x
    x = 80,767,505.21/12,929.82
  6. Step 6: Final answer
    x = 6,246.61

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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.