Home / 11,982.84-17,976.40-4,084.92

Finding the Fourth Proportional to 11,982.84, 17,976.40 and 4,084.92

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Solution

The fourth proportional to 11,982.84, 17,976.40 and 4,084.92 is: 6,128.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.84 : 17,976.40 = 4,084.92 : x
  2. Step 2: Convert to fraction form
    11,982.84/17,976.40 = 4,084.92/x
  3. Step 3: Cross multiply
    11,982.84x = 17,976.40 × 4,084.92
  4. Step 4: Simplify right side
    11,982.84x = 73,432,155.89
  5. Step 5: Solve for x
    x = 73,432,155.89/11,982.84
  6. Step 6: Final answer
    x = 6,128.11

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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.