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Finding the Fourth Proportional to 11,993.08, 17,999.04 and 8,321.08

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Solution

The fourth proportional to 11,993.08, 17,999.04 and 8,321.08 is: 12,488.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,993.08 : 17,999.04 = 8,321.08 : x
  2. Step 2: Convert to fraction form
    11,993.08/17,999.04 = 8,321.08/x
  3. Step 3: Cross multiply
    11,993.08x = 17,999.04 × 8,321.08
  4. Step 4: Simplify right side
    11,993.08x = 149,771,451.76
  5. Step 5: Solve for x
    x = 149,771,451.76/11,993.08
  6. Step 6: Final answer
    x = 12,488.16

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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.