Home / 11,468.20-17,186.10-8,001.40

Finding the Fourth Proportional to 11,468.20, 17,186.10 and 8,001.40

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Solution

The fourth proportional to 11,468.20, 17,186.10 and 8,001.40 is: 11,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,468.20 : 17,186.10 = 8,001.40 : x
  2. Step 2: Convert to fraction form
    11,468.20/17,186.10 = 8,001.40/x
  3. Step 3: Cross multiply
    11,468.20x = 17,186.10 × 8,001.40
  4. Step 4: Simplify right side
    11,468.20x = 137,512,860.54
  5. Step 5: Solve for x
    x = 137,512,860.54/11,468.20
  6. Step 6: Final answer
    x = 11,990.80

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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.