Home / 18,086.34-27,129.83-6,399.62

Finding the Fourth Proportional to 18,086.34, 27,129.83 and 6,399.62

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Solution

The fourth proportional to 18,086.34, 27,129.83 and 6,399.62 is: 9,599.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086.34 : 27,129.83 = 6,399.62 : x
  2. Step 2: Convert to fraction form
    18,086.34/27,129.83 = 6,399.62/x
  3. Step 3: Cross multiply
    18,086.34x = 27,129.83 × 6,399.62
  4. Step 4: Simplify right side
    18,086.34x = 173,620,602.66
  5. Step 5: Solve for x
    x = 173,620,602.66/18,086.34
  6. Step 6: Final answer
    x = 9,599.54

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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.