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Finding the Fourth Proportional to 18,843.26, 28,266.82 and 4,992.26

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Solution

The fourth proportional to 18,843.26, 28,266.82 and 4,992.26 is: 7,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.26 : 28,266.82 = 4,992.26 : x
  2. Step 2: Convert to fraction form
    18,843.26/28,266.82 = 4,992.26/x
  3. Step 3: Cross multiply
    18,843.26x = 28,266.82 × 4,992.26
  4. Step 4: Simplify right side
    18,843.26x = 141,115,314.81
  5. Step 5: Solve for x
    x = 141,115,314.81/18,843.26
  6. Step 6: Final answer
    x = 7,488.90

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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.