Home / 11,982.30-17,972.82-4,586.20

Finding the Fourth Proportional to 11,982.30, 17,972.82 and 4,586.20

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Solution

The fourth proportional to 11,982.30, 17,972.82 and 4,586.20 is: 6,879.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.30 : 17,972.82 = 4,586.20 : x
  2. Step 2: Convert to fraction form
    11,982.30/17,972.82 = 4,586.20/x
  3. Step 3: Cross multiply
    11,982.30x = 17,972.82 × 4,586.20
  4. Step 4: Simplify right side
    11,982.30x = 82,426,947.08
  5. Step 5: Solve for x
    x = 82,426,947.08/11,982.30
  6. Step 6: Final answer
    x = 6,879.06

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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.