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Finding the Fourth Proportional to 11,999.99, 17,999.94 and 3,235.79

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Solution

The fourth proportional to 11,999.99, 17,999.94 and 3,235.79 is: 4,853.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.99 : 17,999.94 = 3,235.79 : x
  2. Step 2: Convert to fraction form
    11,999.99/17,999.94 = 3,235.79/x
  3. Step 3: Cross multiply
    11,999.99x = 17,999.94 × 3,235.79
  4. Step 4: Simplify right side
    11,999.99x = 58,244,025.85
  5. Step 5: Solve for x
    x = 58,244,025.85/11,999.99
  6. Step 6: Final answer
    x = 4,853.67

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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.