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Finding the Fourth Proportional to 11,999.84, 18,000.26 and 3,679.92

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Solution

The fourth proportional to 11,999.84, 18,000.26 and 3,679.92 is: 5,520.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.84 : 18,000.26 = 3,679.92 : x
  2. Step 2: Convert to fraction form
    11,999.84/18,000.26 = 3,679.92/x
  3. Step 3: Cross multiply
    11,999.84x = 18,000.26 × 3,679.92
  4. Step 4: Simplify right side
    11,999.84x = 66,239,498.38
  5. Step 5: Solve for x
    x = 66,239,498.38/11,999.84
  6. Step 6: Final answer
    x = 5,520.03

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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.