Home / 18,021.62-27,020.88-7,498.94

Finding the Fourth Proportional to 18,021.62, 27,020.88 and 7,498.94

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Solution

The fourth proportional to 18,021.62, 27,020.88 and 7,498.94 is: 11,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.62 : 27,020.88 = 7,498.94 : x
  2. Step 2: Convert to fraction form
    18,021.62/27,020.88 = 7,498.94/x
  3. Step 3: Cross multiply
    18,021.62x = 27,020.88 × 7,498.94
  4. Step 4: Simplify right side
    18,021.62x = 202,627,957.87
  5. Step 5: Solve for x
    x = 202,627,957.87/18,021.62
  6. Step 6: Final answer
    x = 11,243.60

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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.