Home / 12,629.08-18,943.98-3,863.80

Finding the Fourth Proportional to 12,629.08, 18,943.98 and 3,863.80

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Solution

The fourth proportional to 12,629.08, 18,943.98 and 3,863.80 is: 5,795.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.08 : 18,943.98 = 3,863.80 : x
  2. Step 2: Convert to fraction form
    12,629.08/18,943.98 = 3,863.80/x
  3. Step 3: Cross multiply
    12,629.08x = 18,943.98 × 3,863.80
  4. Step 4: Simplify right side
    12,629.08x = 73,195,749.92
  5. Step 5: Solve for x
    x = 73,195,749.92/12,629.08
  6. Step 6: Final answer
    x = 5,795.81

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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.