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Finding the Fourth Proportional to 18,684.75, 28,030.43 and 6,203.46

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Solution

The fourth proportional to 18,684.75, 28,030.43 and 6,203.46 is: 9,306.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684.75 : 28,030.43 = 6,203.46 : x
  2. Step 2: Convert to fraction form
    18,684.75/28,030.43 = 6,203.46/x
  3. Step 3: Cross multiply
    18,684.75x = 28,030.43 × 6,203.46
  4. Step 4: Simplify right side
    18,684.75x = 173,885,651.29
  5. Step 5: Solve for x
    x = 173,885,651.29/18,684.75
  6. Step 6: Final answer
    x = 9,306.29

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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.