Home / 11,976.80-17,966.01-3,656.87

Finding the Fourth Proportional to 11,976.80, 17,966.01 and 3,656.87

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Solution

The fourth proportional to 11,976.80, 17,966.01 and 3,656.87 is: 5,485.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,976.80 : 17,966.01 = 3,656.87 : x
  2. Step 2: Convert to fraction form
    11,976.80/17,966.01 = 3,656.87/x
  3. Step 3: Cross multiply
    11,976.80x = 17,966.01 × 3,656.87
  4. Step 4: Simplify right side
    11,976.80x = 65,699,362.99
  5. Step 5: Solve for x
    x = 65,699,362.99/11,976.80
  6. Step 6: Final answer
    x = 5,485.55

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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.