Home / 18,821.66-28,224.26-6,338.34

Finding the Fourth Proportional to 18,821.66, 28,224.26 and 6,338.34

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Solution

The fourth proportional to 18,821.66, 28,224.26 and 6,338.34 is: 9,504.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.66 : 28,224.26 = 6,338.34 : x
  2. Step 2: Convert to fraction form
    18,821.66/28,224.26 = 6,338.34/x
  3. Step 3: Cross multiply
    18,821.66x = 28,224.26 × 6,338.34
  4. Step 4: Simplify right side
    18,821.66x = 178,894,956.13
  5. Step 5: Solve for x
    x = 178,894,956.13/18,821.66
  6. Step 6: Final answer
    x = 9,504.74

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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.