Home / 18,078.42-27,116.82-4,930.86

Finding the Fourth Proportional to 18,078.42, 27,116.82 and 4,930.86

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Solution

The fourth proportional to 18,078.42, 27,116.82 and 4,930.86 is: 7,396.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,078.42 : 27,116.82 = 4,930.86 : x
  2. Step 2: Convert to fraction form
    18,078.42/27,116.82 = 4,930.86/x
  3. Step 3: Cross multiply
    18,078.42x = 27,116.82 × 4,930.86
  4. Step 4: Simplify right side
    18,078.42x = 133,709,243.07
  5. Step 5: Solve for x
    x = 133,709,243.07/18,078.42
  6. Step 6: Final answer
    x = 7,396.07

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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.