Home / 18,198.05-27,280.84-7,102.16

Finding the Fourth Proportional to 18,198.05, 27,280.84 and 7,102.16

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Solution

The fourth proportional to 18,198.05, 27,280.84 and 7,102.16 is: 10,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,198.05 : 27,280.84 = 7,102.16 : x
  2. Step 2: Convert to fraction form
    18,198.05/27,280.84 = 7,102.16/x
  3. Step 3: Cross multiply
    18,198.05x = 27,280.84 × 7,102.16
  4. Step 4: Simplify right side
    18,198.05x = 193,752,890.61
  5. Step 5: Solve for x
    x = 193,752,890.61/18,198.05
  6. Step 6: Final answer
    x = 10,646.90

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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.