Home / 11,977.83-17,967.49-3,657.85

Finding the Fourth Proportional to 11,977.83, 17,967.49 and 3,657.85

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Solution

The fourth proportional to 11,977.83, 17,967.49 and 3,657.85 is: 5,487.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.83 : 17,967.49 = 3,657.85 : x
  2. Step 2: Convert to fraction form
    11,977.83/17,967.49 = 3,657.85/x
  3. Step 3: Cross multiply
    11,977.83x = 17,967.49 × 3,657.85
  4. Step 4: Simplify right side
    11,977.83x = 65,722,329.23
  5. Step 5: Solve for x
    x = 65,722,329.23/11,977.83
  6. Step 6: Final answer
    x = 5,487.00

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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.