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Finding the Fourth Proportional to 11,999.63, 17,999.99 and 3,679.04

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Solution

The fourth proportional to 11,999.63, 17,999.99 and 3,679.04 is: 5,518.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.63 : 17,999.99 = 3,679.04 : x
  2. Step 2: Convert to fraction form
    11,999.63/17,999.99 = 3,679.04/x
  3. Step 3: Cross multiply
    11,999.63x = 17,999.99 × 3,679.04
  4. Step 4: Simplify right side
    11,999.63x = 66,222,683.21
  5. Step 5: Solve for x
    x = 66,222,683.21/11,999.63
  6. Step 6: Final answer
    x = 5,518.73

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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.