Home / 12,156.28-18,234.41-3,837.13

Finding the Fourth Proportional to 12,156.28, 18,234.41 and 3,837.13

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Solution

The fourth proportional to 12,156.28, 18,234.41 and 3,837.13 is: 5,755.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.28 : 18,234.41 = 3,837.13 : x
  2. Step 2: Convert to fraction form
    12,156.28/18,234.41 = 3,837.13/x
  3. Step 3: Cross multiply
    12,156.28x = 18,234.41 × 3,837.13
  4. Step 4: Simplify right side
    12,156.28x = 69,967,801.64
  5. Step 5: Solve for x
    x = 69,967,801.64/12,156.28
  6. Step 6: Final answer
    x = 5,755.69

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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.