Home / 18,912.24-28,365.84-11,892.96

Finding the Fourth Proportional to 18,912.24, 28,365.84 and 11,892.96

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Solution

The fourth proportional to 18,912.24, 28,365.84 and 11,892.96 is: 17,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912.24 : 28,365.84 = 11,892.96 : x
  2. Step 2: Convert to fraction form
    18,912.24/28,365.84 = 11,892.96/x
  3. Step 3: Cross multiply
    18,912.24x = 28,365.84 × 11,892.96
  4. Step 4: Simplify right side
    18,912.24x = 337,353,800.49
  5. Step 5: Solve for x
    x = 337,353,800.49/18,912.24
  6. Step 6: Final answer
    x = 17,837.86

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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.