Home / 18,286.10-25,234.91-10,219.88

Finding the Fourth Proportional to 18,286.10, 25,234.91 and 10,219.88

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Solution

The fourth proportional to 18,286.10, 25,234.91 and 10,219.88 is: 14,103.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.10 : 25,234.91 = 10,219.88 : x
  2. Step 2: Convert to fraction form
    18,286.10/25,234.91 = 10,219.88/x
  3. Step 3: Cross multiply
    18,286.10x = 25,234.91 × 10,219.88
  4. Step 4: Simplify right side
    18,286.10x = 257,897,764.00
  5. Step 5: Solve for x
    x = 257,897,764.00/18,286.10
  6. Step 6: Final answer
    x = 14,103.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.