Home / 12,156.61-18,234.92-3,837.27

Finding the Fourth Proportional to 12,156.61, 18,234.92 and 3,837.27

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Solution

The fourth proportional to 12,156.61, 18,234.92 and 3,837.27 is: 5,755.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.61 : 18,234.92 = 3,837.27 : x
  2. Step 2: Convert to fraction form
    12,156.61/18,234.92 = 3,837.27/x
  3. Step 3: Cross multiply
    12,156.61x = 18,234.92 × 3,837.27
  4. Step 4: Simplify right side
    12,156.61x = 69,972,311.47
  5. Step 5: Solve for x
    x = 69,972,311.47/12,156.61
  6. Step 6: Final answer
    x = 5,755.91

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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.