Home / 13,945.56-20,918.34-3,556.50

Finding the Fourth Proportional to 13,945.56, 20,918.34 and 3,556.50

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Solution

The fourth proportional to 13,945.56, 20,918.34 and 3,556.50 is: 5,334.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.56 : 20,918.34 = 3,556.50 : x
  2. Step 2: Convert to fraction form
    13,945.56/20,918.34 = 3,556.50/x
  3. Step 3: Cross multiply
    13,945.56x = 20,918.34 × 3,556.50
  4. Step 4: Simplify right side
    13,945.56x = 74,396,076.21
  5. Step 5: Solve for x
    x = 74,396,076.21/13,945.56
  6. Step 6: Final answer
    x = 5,334.75

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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.