Home / 18,628.14-27,942.17-5,480.49

Finding the Fourth Proportional to 18,628.14, 27,942.17 and 5,480.49

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Solution

The fourth proportional to 18,628.14, 27,942.17 and 5,480.49 is: 8,220.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.14 : 27,942.17 = 5,480.49 : x
  2. Step 2: Convert to fraction form
    18,628.14/27,942.17 = 5,480.49/x
  3. Step 3: Cross multiply
    18,628.14x = 27,942.17 × 5,480.49
  4. Step 4: Simplify right side
    18,628.14x = 153,136,755.86
  5. Step 5: Solve for x
    x = 153,136,755.86/18,628.14
  6. Step 6: Final answer
    x = 8,220.72

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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.