Home / 18,220.60-27,331.62-5,074.12

Finding the Fourth Proportional to 18,220.60, 27,331.62 and 5,074.12

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Solution

The fourth proportional to 18,220.60, 27,331.62 and 5,074.12 is: 7,611.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.60 : 27,331.62 = 5,074.12 : x
  2. Step 2: Convert to fraction form
    18,220.60/27,331.62 = 5,074.12/x
  3. Step 3: Cross multiply
    18,220.60x = 27,331.62 × 5,074.12
  4. Step 4: Simplify right side
    18,220.60x = 138,683,919.67
  5. Step 5: Solve for x
    x = 138,683,919.67/18,220.60
  6. Step 6: Final answer
    x = 7,611.38

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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.