Home / 11,977.03-17,966.48-3,657.12

Finding the Fourth Proportional to 11,977.03, 17,966.48 and 3,657.12

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Solution

The fourth proportional to 11,977.03, 17,966.48 and 3,657.12 is: 5,485.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.03 : 17,966.48 = 3,657.12 : x
  2. Step 2: Convert to fraction form
    11,977.03/17,966.48 = 3,657.12/x
  3. Step 3: Cross multiply
    11,977.03x = 17,966.48 × 3,657.12
  4. Step 4: Simplify right side
    11,977.03x = 65,705,487.68
  5. Step 5: Solve for x
    x = 65,705,487.68/11,977.03
  6. Step 6: Final answer
    x = 5,485.96

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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.