Home / 18,712.38-28,062.50-6,229.06

Finding the Fourth Proportional to 18,712.38, 28,062.50 and 6,229.06

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Solution

The fourth proportional to 18,712.38, 28,062.50 and 6,229.06 is: 9,341.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.38 : 28,062.50 = 6,229.06 : x
  2. Step 2: Convert to fraction form
    18,712.38/28,062.50 = 6,229.06/x
  3. Step 3: Cross multiply
    18,712.38x = 28,062.50 × 6,229.06
  4. Step 4: Simplify right side
    18,712.38x = 174,802,855.94
  5. Step 5: Solve for x
    x = 174,802,855.94/18,712.38
  6. Step 6: Final answer
    x = 9,341.56

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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.