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Finding the Fourth Proportional to 18,495.80, 27,747.42 and 6,809.08

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Solution

The fourth proportional to 18,495.80, 27,747.42 and 6,809.08 is: 10,214.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,495.80 : 27,747.42 = 6,809.08 : x
  2. Step 2: Convert to fraction form
    18,495.80/27,747.42 = 6,809.08/x
  3. Step 3: Cross multiply
    18,495.80x = 27,747.42 × 6,809.08
  4. Step 4: Simplify right side
    18,495.80x = 188,934,402.57
  5. Step 5: Solve for x
    x = 188,934,402.57/18,495.80
  6. Step 6: Final answer
    x = 10,214.99

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1.5x scale

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.