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Finding the Fourth Proportional to 18,010.10, 27,019.20 and 5,530.70

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Solution

The fourth proportional to 18,010.10, 27,019.20 and 5,530.70 is: 8,297.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,010.10 : 27,019.20 = 5,530.70 : x
  2. Step 2: Convert to fraction form
    18,010.10/27,019.20 = 5,530.70/x
  3. Step 3: Cross multiply
    18,010.10x = 27,019.20 × 5,530.70
  4. Step 4: Simplify right side
    18,010.10x = 149,435,089.44
  5. Step 5: Solve for x
    x = 149,435,089.44/18,010.10
  6. Step 6: Final answer
    x = 8,297.29

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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.