Home / 18,273.68-27,421.46-7,885.43

Finding the Fourth Proportional to 18,273.68, 27,421.46 and 7,885.43

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Solution

The fourth proportional to 18,273.68, 27,421.46 and 7,885.43 is: 11,832.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273.68 : 27,421.46 = 7,885.43 : x
  2. Step 2: Convert to fraction form
    18,273.68/27,421.46 = 7,885.43/x
  3. Step 3: Cross multiply
    18,273.68x = 27,421.46 × 7,885.43
  4. Step 4: Simplify right side
    18,273.68x = 216,230,091.60
  5. Step 5: Solve for x
    x = 216,230,091.60/18,273.68
  6. Step 6: Final answer
    x = 11,832.87

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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.