Home / 11,980.73-17,972.01-4,080.80

Finding the Fourth Proportional to 11,980.73, 17,972.01 and 4,080.80

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Solution

The fourth proportional to 11,980.73, 17,972.01 and 4,080.80 is: 6,121.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,980.73 : 17,972.01 = 4,080.80 : x
  2. Step 2: Convert to fraction form
    11,980.73/17,972.01 = 4,080.80/x
  3. Step 3: Cross multiply
    11,980.73x = 17,972.01 × 4,080.80
  4. Step 4: Simplify right side
    11,980.73x = 73,340,223.34
  5. Step 5: Solve for x
    x = 73,340,223.34/11,980.73
  6. Step 6: Final answer
    x = 6,121.51

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1.5x scale

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.