Home / 18,997.29-28,496.70-7,149.87

Finding the Fourth Proportional to 18,997.29, 28,496.70 and 7,149.87

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Solution

The fourth proportional to 18,997.29, 28,496.70 and 7,149.87 is: 10,725.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.29 : 28,496.70 = 7,149.87 : x
  2. Step 2: Convert to fraction form
    18,997.29/28,496.70 = 7,149.87/x
  3. Step 3: Cross multiply
    18,997.29x = 28,496.70 × 7,149.87
  4. Step 4: Simplify right side
    18,997.29x = 203,747,700.43
  5. Step 5: Solve for x
    x = 203,747,700.43/18,997.29
  6. Step 6: Final answer
    x = 10,725.09

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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.