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Finding the Fourth Proportional to 11,897.04, 17,845.86 and 3,999.68

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Solution

The fourth proportional to 11,897.04, 17,845.86 and 3,999.68 is: 5,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.04 : 17,845.86 = 3,999.68 : x
  2. Step 2: Convert to fraction form
    11,897.04/17,845.86 = 3,999.68/x
  3. Step 3: Cross multiply
    11,897.04x = 17,845.86 × 3,999.68
  4. Step 4: Simplify right side
    11,897.04x = 71,377,729.32
  5. Step 5: Solve for x
    x = 71,377,729.32/11,897.04
  6. Step 6: Final answer
    x = 5,999.62

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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.