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Finding the Fourth Proportional to 18,805.08, 28,209.04 and 6,325.14

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Solution

The fourth proportional to 18,805.08, 28,209.04 and 6,325.14 is: 9,488.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805.08 : 28,209.04 = 6,325.14 : x
  2. Step 2: Convert to fraction form
    18,805.08/28,209.04 = 6,325.14/x
  3. Step 3: Cross multiply
    18,805.08x = 28,209.04 × 6,325.14
  4. Step 4: Simplify right side
    18,805.08x = 178,426,127.27
  5. Step 5: Solve for x
    x = 178,426,127.27/18,805.08
  6. Step 6: Final answer
    x = 9,488.19

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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.