Home / 16,857.70-25,286.55-12,167.80

Finding the Fourth Proportional to 16,857.70, 25,286.55 and 12,167.80

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Solution

The fourth proportional to 16,857.70, 25,286.55 and 12,167.80 is: 18,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,857.70 : 25,286.55 = 12,167.80 : x
  2. Step 2: Convert to fraction form
    16,857.70/25,286.55 = 12,167.80/x
  3. Step 3: Cross multiply
    16,857.70x = 25,286.55 × 12,167.80
  4. Step 4: Simplify right side
    16,857.70x = 307,681,683.09
  5. Step 5: Solve for x
    x = 307,681,683.09/16,857.70
  6. Step 6: Final answer
    x = 18,251.70

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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.