Home / 18,243.90-27,365.58-9,921.96

Finding the Fourth Proportional to 18,243.90, 27,365.58 and 9,921.96

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Solution

The fourth proportional to 18,243.90, 27,365.58 and 9,921.96 is: 14,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.90 : 27,365.58 = 9,921.96 : x
  2. Step 2: Convert to fraction form
    18,243.90/27,365.58 = 9,921.96/x
  3. Step 3: Cross multiply
    18,243.90x = 27,365.58 × 9,921.96
  4. Step 4: Simplify right side
    18,243.90x = 271,520,190.14
  5. Step 5: Solve for x
    x = 271,520,190.14/18,243.90
  6. Step 6: Final answer
    x = 14,882.79

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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.