Home / 11,380.88-17,042.04-9,149.20

Finding the Fourth Proportional to 11,380.88, 17,042.04 and 9,149.20

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Solution

The fourth proportional to 11,380.88, 17,042.04 and 9,149.20 is: 13,700.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,380.88 : 17,042.04 = 9,149.20 : x
  2. Step 2: Convert to fraction form
    11,380.88/17,042.04 = 9,149.20/x
  3. Step 3: Cross multiply
    11,380.88x = 17,042.04 × 9,149.20
  4. Step 4: Simplify right side
    11,380.88x = 155,921,032.37
  5. Step 5: Solve for x
    x = 155,921,032.37/11,380.88
  6. Step 6: Final answer
    x = 13,700.26

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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.