Home / 9,212.90-13,821.67-3,945.26

Finding the Fourth Proportional to 9,212.90, 13,821.67 and 3,945.26

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Solution

The fourth proportional to 9,212.90, 13,821.67 and 3,945.26 is: 5,918.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212.90 : 13,821.67 = 3,945.26 : x
  2. Step 2: Convert to fraction form
    9,212.90/13,821.67 = 3,945.26/x
  3. Step 3: Cross multiply
    9,212.90x = 13,821.67 × 3,945.26
  4. Step 4: Simplify right side
    9,212.90x = 54,530,121.27
  5. Step 5: Solve for x
    x = 54,530,121.27/9,212.90
  6. Step 6: Final answer
    x = 5,918.89

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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.