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Finding the Fourth Proportional to 18,670.73, 28,006.11 and 5,524.08

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Solution

The fourth proportional to 18,670.73, 28,006.11 and 5,524.08 is: 8,286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.73 : 28,006.11 = 5,524.08 : x
  2. Step 2: Convert to fraction form
    18,670.73/28,006.11 = 5,524.08/x
  3. Step 3: Cross multiply
    18,670.73x = 28,006.11 × 5,524.08
  4. Step 4: Simplify right side
    18,670.73x = 154,707,992.13
  5. Step 5: Solve for x
    x = 154,707,992.13/18,670.73
  6. Step 6: Final answer
    x = 8,286.13

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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.