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Finding the Fourth Proportional to 18,336.30, 27,514.85 and 9,902.70

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Solution

The fourth proportional to 18,336.30, 27,514.85 and 9,902.70 is: 14,859.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,336.30 : 27,514.85 = 9,902.70 : x
  2. Step 2: Convert to fraction form
    18,336.30/27,514.85 = 9,902.70/x
  3. Step 3: Cross multiply
    18,336.30x = 27,514.85 × 9,902.70
  4. Step 4: Simplify right side
    18,336.30x = 272,471,305.10
  5. Step 5: Solve for x
    x = 272,471,305.10/18,336.30
  6. Step 6: Final answer
    x = 14,859.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.