Home / 11,391.12-17,089.92-8,094.42

Finding the Fourth Proportional to 11,391.12, 17,089.92 and 8,094.42

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Solution

The fourth proportional to 11,391.12, 17,089.92 and 8,094.42 is: 12,143.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391.12 : 17,089.92 = 8,094.42 : x
  2. Step 2: Convert to fraction form
    11,391.12/17,089.92 = 8,094.42/x
  3. Step 3: Cross multiply
    11,391.12x = 17,089.92 × 8,094.42
  4. Step 4: Simplify right side
    11,391.12x = 138,332,990.25
  5. Step 5: Solve for x
    x = 138,332,990.25/11,391.12
  6. Step 6: Final answer
    x = 12,143.93

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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.