Home / 18,205.48-27,312.12-10,311.73

Finding the Fourth Proportional to 18,205.48, 27,312.12 and 10,311.73

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Solution

The fourth proportional to 18,205.48, 27,312.12 and 10,311.73 is: 15,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,205.48 : 27,312.12 = 10,311.73 : x
  2. Step 2: Convert to fraction form
    18,205.48/27,312.12 = 10,311.73/x
  3. Step 3: Cross multiply
    18,205.48x = 27,312.12 × 10,311.73
  4. Step 4: Simplify right side
    18,205.48x = 281,635,138.89
  5. Step 5: Solve for x
    x = 281,635,138.89/18,205.48
  6. Step 6: Final answer
    x = 15,469.80

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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.