Home / 12,393.83-18,591.26-3,628.76

Finding the Fourth Proportional to 12,393.83, 18,591.26 and 3,628.76

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Solution

The fourth proportional to 12,393.83, 18,591.26 and 3,628.76 is: 5,443.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.83 : 18,591.26 = 3,628.76 : x
  2. Step 2: Convert to fraction form
    12,393.83/18,591.26 = 3,628.76/x
  3. Step 3: Cross multiply
    12,393.83x = 18,591.26 × 3,628.76
  4. Step 4: Simplify right side
    12,393.83x = 67,463,109.54
  5. Step 5: Solve for x
    x = 67,463,109.54/12,393.83
  6. Step 6: Final answer
    x = 5,443.28

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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.