Home / 7,945.87-11,918.82-3,265.09

Finding the Fourth Proportional to 7,945.87, 11,918.82 and 3,265.09

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Solution

The fourth proportional to 7,945.87, 11,918.82 and 3,265.09 is: 4,897.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.87 : 11,918.82 = 3,265.09 : x
  2. Step 2: Convert to fraction form
    7,945.87/11,918.82 = 3,265.09/x
  3. Step 3: Cross multiply
    7,945.87x = 11,918.82 × 3,265.09
  4. Step 4: Simplify right side
    7,945.87x = 38,916,019.99
  5. Step 5: Solve for x
    x = 38,916,019.99/7,945.87
  6. Step 6: Final answer
    x = 4,897.64

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Similar ratio
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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.