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Finding the Fourth Proportional to 18,909, 28,376.46 and 6,597

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Solution

The fourth proportional to 18,909, 28,376.46 and 6,597 is: 9,900.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909 : 28,376.46 = 6,597 : x
  2. Step 2: Convert to fraction form
    18,909/28,376.46 = 6,597/x
  3. Step 3: Cross multiply
    18,909x = 28,376.46 × 6,597
  4. Step 4: Simplify right side
    18,909x = 187,199,506.62
  5. Step 5: Solve for x
    x = 187,199,506.62/18,909
  6. Step 6: Final answer
    x = 9,900.02

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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.