Home / 13,628.49-20,442.75-3,768.54

Finding the Fourth Proportional to 13,628.49, 20,442.75 and 3,768.54

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Solution

The fourth proportional to 13,628.49, 20,442.75 and 3,768.54 is: 5,652.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.49 : 20,442.75 = 3,768.54 : x
  2. Step 2: Convert to fraction form
    13,628.49/20,442.75 = 3,768.54/x
  3. Step 3: Cross multiply
    13,628.49x = 20,442.75 × 3,768.54
  4. Step 4: Simplify right side
    13,628.49x = 77,039,321.09
  5. Step 5: Solve for x
    x = 77,039,321.09/13,628.49
  6. Step 6: Final answer
    x = 5,652.81

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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.