Home / 18,421.25-27,631.87-5,273.62

Finding the Fourth Proportional to 18,421.25, 27,631.87 and 5,273.62

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Solution

The fourth proportional to 18,421.25, 27,631.87 and 5,273.62 is: 7,910.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.25 : 27,631.87 = 5,273.62 : x
  2. Step 2: Convert to fraction form
    18,421.25/27,631.87 = 5,273.62/x
  3. Step 3: Cross multiply
    18,421.25x = 27,631.87 × 5,273.62
  4. Step 4: Simplify right side
    18,421.25x = 145,719,900.01
  5. Step 5: Solve for x
    x = 145,719,900.01/18,421.25
  6. Step 6: Final answer
    x = 7,910.43

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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.