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Finding the Fourth Proportional to 18,418.11, 27,635.39 and 9,651

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Solution

The fourth proportional to 18,418.11, 27,635.39 and 9,651 is: 14,480.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418.11 : 27,635.39 = 9,651 : x
  2. Step 2: Convert to fraction form
    18,418.11/27,635.39 = 9,651/x
  3. Step 3: Cross multiply
    18,418.11x = 27,635.39 × 9,651
  4. Step 4: Simplify right side
    18,418.11x = 266,709,148.89
  5. Step 5: Solve for x
    x = 266,709,148.89/18,418.11
  6. Step 6: Final answer
    x = 14,480.81

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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.