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Finding the Fourth Proportional to 18,802, 28,203.46 and 6,322.18

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Solution

The fourth proportional to 18,802, 28,203.46 and 6,322.18 is: 9,483.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802 : 28,203.46 = 6,322.18 : x
  2. Step 2: Convert to fraction form
    18,802/28,203.46 = 6,322.18/x
  3. Step 3: Cross multiply
    18,802x = 28,203.46 × 6,322.18
  4. Step 4: Simplify right side
    18,802x = 178,307,350.74
  5. Step 5: Solve for x
    x = 178,307,350.74/18,802
  6. Step 6: Final answer
    x = 9,483.42

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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.