Home / 9,945.76-13,725.44-5,469.68

Finding the Fourth Proportional to 9,945.76, 13,725.44 and 5,469.68

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Solution

The fourth proportional to 9,945.76, 13,725.44 and 5,469.68 is: 7,548.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,945.76 : 13,725.44 = 5,469.68 : x
  2. Step 2: Convert to fraction form
    9,945.76/13,725.44 = 5,469.68/x
  3. Step 3: Cross multiply
    9,945.76x = 13,725.44 × 5,469.68
  4. Step 4: Simplify right side
    9,945.76x = 75,073,764.66
  5. Step 5: Solve for x
    x = 75,073,764.66/9,945.76
  6. Step 6: Final answer
    x = 7,548.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.