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Finding the Fourth Proportional to 18,248.85, 27,364.16 and 8,379.71

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Solution

The fourth proportional to 18,248.85, 27,364.16 and 8,379.71 is: 12,565.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,248.85 : 27,364.16 = 8,379.71 : x
  2. Step 2: Convert to fraction form
    18,248.85/27,364.16 = 8,379.71/x
  3. Step 3: Cross multiply
    18,248.85x = 27,364.16 × 8,379.71
  4. Step 4: Simplify right side
    18,248.85x = 229,303,546.47
  5. Step 5: Solve for x
    x = 229,303,546.47/18,248.85
  6. Step 6: Final answer
    x = 12,565.37

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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.