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Finding the Fourth Proportional to 18,245.87, 27,368.81 and 8,393.44

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Solution

The fourth proportional to 18,245.87, 27,368.81 and 8,393.44 is: 12,590.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.87 : 27,368.81 = 8,393.44 : x
  2. Step 2: Convert to fraction form
    18,245.87/27,368.81 = 8,393.44/x
  3. Step 3: Cross multiply
    18,245.87x = 27,368.81 × 8,393.44
  4. Step 4: Simplify right side
    18,245.87x = 229,718,464.61
  5. Step 5: Solve for x
    x = 229,718,464.61/18,245.87
  6. Step 6: Final answer
    x = 12,590.16

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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.