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Finding the Fourth Proportional to 27,586, 41,385.48 and 9,118

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Solution

The fourth proportional to 27,586, 41,385.48 and 9,118 is: 13,679.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,586 : 41,385.48 = 9,118 : x
  2. Step 2: Convert to fraction form
    27,586/41,385.48 = 9,118/x
  3. Step 3: Cross multiply
    27,586x = 41,385.48 × 9,118
  4. Step 4: Simplify right side
    27,586x = 377,352,806.64
  5. Step 5: Solve for x
    x = 377,352,806.64/27,586
  6. Step 6: Final answer
    x = 13,679.14

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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.