Home / 11,998.20-17,989.48-5,758.04

Finding the Fourth Proportional to 11,998.20, 17,989.48 and 5,758.04

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Solution

The fourth proportional to 11,998.20, 17,989.48 and 5,758.04 is: 8,633.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998.20 : 17,989.48 = 5,758.04 : x
  2. Step 2: Convert to fraction form
    11,998.20/17,989.48 = 5,758.04/x
  3. Step 3: Cross multiply
    11,998.20x = 17,989.48 × 5,758.04
  4. Step 4: Simplify right side
    11,998.20x = 103,584,145.42
  5. Step 5: Solve for x
    x = 103,584,145.42/11,998.20
  6. Step 6: Final answer
    x = 8,633.31

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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.