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Finding the Fourth Proportional to 11,999.92, 17,993.58 and 6,454.48

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Solution

The fourth proportional to 11,999.92, 17,993.58 and 6,454.48 is: 9,678.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.92 : 17,993.58 = 6,454.48 : x
  2. Step 2: Convert to fraction form
    11,999.92/17,993.58 = 6,454.48/x
  3. Step 3: Cross multiply
    11,999.92x = 17,993.58 × 6,454.48
  4. Step 4: Simplify right side
    11,999.92x = 116,139,202.24
  5. Step 5: Solve for x
    x = 116,139,202.24/11,999.92
  6. Step 6: Final answer
    x = 9,678.33

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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.