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Finding the Fourth Proportional to 18,674, 28,015.80 and 6,362

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Solution

The fourth proportional to 18,674, 28,015.80 and 6,362 is: 9,544.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674 : 28,015.80 = 6,362 : x
  2. Step 2: Convert to fraction form
    18,674/28,015.80 = 6,362/x
  3. Step 3: Cross multiply
    18,674x = 28,015.80 × 6,362
  4. Step 4: Simplify right side
    18,674x = 178,236,519.60
  5. Step 5: Solve for x
    x = 178,236,519.60/18,674
  6. Step 6: Final answer
    x = 9,544.64

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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.