Home / 11,929.10-17,893.80-3,609.18

Finding the Fourth Proportional to 11,929.10, 17,893.80 and 3,609.18

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Solution

The fourth proportional to 11,929.10, 17,893.80 and 3,609.18 is: 5,413.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.10 : 17,893.80 = 3,609.18 : x
  2. Step 2: Convert to fraction form
    11,929.10/17,893.80 = 3,609.18/x
  3. Step 3: Cross multiply
    11,929.10x = 17,893.80 × 3,609.18
  4. Step 4: Simplify right side
    11,929.10x = 64,581,945.08
  5. Step 5: Solve for x
    x = 64,581,945.08/11,929.10
  6. Step 6: Final answer
    x = 5,413.82

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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.