Home / 12,147.03-18,220.82-5,568.75

Finding the Fourth Proportional to 12,147.03, 18,220.82 and 5,568.75

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Solution

The fourth proportional to 12,147.03, 18,220.82 and 5,568.75 is: 8,353.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147.03 : 18,220.82 = 5,568.75 : x
  2. Step 2: Convert to fraction form
    12,147.03/18,220.82 = 5,568.75/x
  3. Step 3: Cross multiply
    12,147.03x = 18,220.82 × 5,568.75
  4. Step 4: Simplify right side
    12,147.03x = 101,467,163.53
  5. Step 5: Solve for x
    x = 101,467,163.53/12,147.03
  6. Step 6: Final answer
    x = 8,353.25

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Double scale
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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.