Home / 18,079.06-27,120.90-6,229.78

Finding the Fourth Proportional to 18,079.06, 27,120.90 and 6,229.78

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Solution

The fourth proportional to 18,079.06, 27,120.90 and 6,229.78 is: 9,345.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,079.06 : 27,120.90 = 6,229.78 : x
  2. Step 2: Convert to fraction form
    18,079.06/27,120.90 = 6,229.78/x
  3. Step 3: Cross multiply
    18,079.06x = 27,120.90 × 6,229.78
  4. Step 4: Simplify right side
    18,079.06x = 168,957,240.40
  5. Step 5: Solve for x
    x = 168,957,240.40/18,079.06
  6. Step 6: Final answer
    x = 9,345.47

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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.