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Finding the Fourth Proportional to 18,505.44, 27,758.16 and 4,654.44

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Solution

The fourth proportional to 18,505.44, 27,758.16 and 4,654.44 is: 6,981.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.44 : 27,758.16 = 4,654.44 : x
  2. Step 2: Convert to fraction form
    18,505.44/27,758.16 = 4,654.44/x
  3. Step 3: Cross multiply
    18,505.44x = 27,758.16 × 4,654.44
  4. Step 4: Simplify right side
    18,505.44x = 129,198,690.23
  5. Step 5: Solve for x
    x = 129,198,690.23/18,505.44
  6. Step 6: Final answer
    x = 6,981.66

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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.