Home / 12,108.67-18,057.04-11,997.95

Finding the Fourth Proportional to 12,108.67, 18,057.04 and 11,997.95

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Solution

The fourth proportional to 12,108.67, 18,057.04 and 11,997.95 is: 17,891.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.67 : 18,057.04 = 11,997.95 : x
  2. Step 2: Convert to fraction form
    12,108.67/18,057.04 = 11,997.95/x
  3. Step 3: Cross multiply
    12,108.67x = 18,057.04 × 11,997.95
  4. Step 4: Simplify right side
    12,108.67x = 216,647,342.79
  5. Step 5: Solve for x
    x = 216,647,342.79/12,108.67
  6. Step 6: Final answer
    x = 17,891.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.