Home / 18,239.27-27,338.85-7,143.89

Finding the Fourth Proportional to 18,239.27, 27,338.85 and 7,143.89

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Solution

The fourth proportional to 18,239.27, 27,338.85 and 7,143.89 is: 10,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.27 : 27,338.85 = 7,143.89 : x
  2. Step 2: Convert to fraction form
    18,239.27/27,338.85 = 7,143.89/x
  3. Step 3: Cross multiply
    18,239.27x = 27,338.85 × 7,143.89
  4. Step 4: Simplify right side
    18,239.27x = 195,305,600.43
  5. Step 5: Solve for x
    x = 195,305,600.43/18,239.27
  6. Step 6: Final answer
    x = 10,707.98

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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.