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Finding the Fourth Proportional to 18,110.30, 27,175.70 and 9,790.11

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Solution

The fourth proportional to 18,110.30, 27,175.70 and 9,790.11 is: 14,690.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110.30 : 27,175.70 = 9,790.11 : x
  2. Step 2: Convert to fraction form
    18,110.30/27,175.70 = 9,790.11/x
  3. Step 3: Cross multiply
    18,110.30x = 27,175.70 × 9,790.11
  4. Step 4: Simplify right side
    18,110.30x = 266,053,116.80
  5. Step 5: Solve for x
    x = 266,053,116.80/18,110.30
  6. Step 6: Final answer
    x = 14,690.71

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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.