Home / 18,147.50-27,221.25-5,835.50

Finding the Fourth Proportional to 18,147.50, 27,221.25 and 5,835.50

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Solution

The fourth proportional to 18,147.50, 27,221.25 and 5,835.50 is: 8,753.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.50 : 27,221.25 = 5,835.50 : x
  2. Step 2: Convert to fraction form
    18,147.50/27,221.25 = 5,835.50/x
  3. Step 3: Cross multiply
    18,147.50x = 27,221.25 × 5,835.50
  4. Step 4: Simplify right side
    18,147.50x = 158,849,604.38
  5. Step 5: Solve for x
    x = 158,849,604.38/18,147.50
  6. Step 6: Final answer
    x = 8,753.25

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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.