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Finding the Fourth Proportional to 11,999.30, 17,992.89 and 7,003.37

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Solution

The fourth proportional to 11,999.30, 17,992.89 and 7,003.37 is: 10,501.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.30 : 17,992.89 = 7,003.37 : x
  2. Step 2: Convert to fraction form
    11,999.30/17,992.89 = 7,003.37/x
  3. Step 3: Cross multiply
    11,999.30x = 17,992.89 × 7,003.37
  4. Step 4: Simplify right side
    11,999.30x = 126,010,911.02
  5. Step 5: Solve for x
    x = 126,010,911.02/11,999.30
  6. Step 6: Final answer
    x = 10,501.53

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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.