Home / 18,821.31-28,227.38-6,338.09

Finding the Fourth Proportional to 18,821.31, 28,227.38 and 6,338.09

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Solution

The fourth proportional to 18,821.31, 28,227.38 and 6,338.09 is: 9,505.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.31 : 28,227.38 = 6,338.09 : x
  2. Step 2: Convert to fraction form
    18,821.31/28,227.38 = 6,338.09/x
  3. Step 3: Cross multiply
    18,821.31x = 28,227.38 × 6,338.09
  4. Step 4: Simplify right side
    18,821.31x = 178,907,502.08
  5. Step 5: Solve for x
    x = 178,907,502.08/18,821.31
  6. Step 6: Final answer
    x = 9,505.58

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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.