Home / 11,845.29-17,755.45-3,945.70

Finding the Fourth Proportional to 11,845.29, 17,755.45 and 3,945.70

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Solution

The fourth proportional to 11,845.29, 17,755.45 and 3,945.70 is: 5,914.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,845.29 : 17,755.45 = 3,945.70 : x
  2. Step 2: Convert to fraction form
    11,845.29/17,755.45 = 3,945.70/x
  3. Step 3: Cross multiply
    11,845.29x = 17,755.45 × 3,945.70
  4. Step 4: Simplify right side
    11,845.29x = 70,057,679.07
  5. Step 5: Solve for x
    x = 70,057,679.07/11,845.29
  6. Step 6: Final answer
    x = 5,914.39

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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.