Home / 18,231.40-27,359.90-7,850.60

Finding the Fourth Proportional to 18,231.40, 27,359.90 and 7,850.60

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Solution

The fourth proportional to 18,231.40, 27,359.90 and 7,850.60 is: 11,781.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.40 : 27,359.90 = 7,850.60 : x
  2. Step 2: Convert to fraction form
    18,231.40/27,359.90 = 7,850.60/x
  3. Step 3: Cross multiply
    18,231.40x = 27,359.90 × 7,850.60
  4. Step 4: Simplify right side
    18,231.40x = 214,791,630.94
  5. Step 5: Solve for x
    x = 214,791,630.94/18,231.40
  6. Step 6: Final answer
    x = 11,781.41

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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.