Home / 16,861.45-25,286.10-8,538.70

Finding the Fourth Proportional to 16,861.45, 25,286.10 and 8,538.70

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Solution

The fourth proportional to 16,861.45, 25,286.10 and 8,538.70 is: 12,804.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,861.45 : 25,286.10 = 8,538.70 : x
  2. Step 2: Convert to fraction form
    16,861.45/25,286.10 = 8,538.70/x
  3. Step 3: Cross multiply
    16,861.45x = 25,286.10 × 8,538.70
  4. Step 4: Simplify right side
    16,861.45x = 215,910,422.07
  5. Step 5: Solve for x
    x = 215,910,422.07/16,861.45
  6. Step 6: Final answer
    x = 12,804.97

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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.