Home / 8,724.36-13,090.20-3,791.52

Finding the Fourth Proportional to 8,724.36, 13,090.20 and 3,791.52

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Solution

The fourth proportional to 8,724.36, 13,090.20 and 3,791.52 is: 5,688.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.36 : 13,090.20 = 3,791.52 : x
  2. Step 2: Convert to fraction form
    8,724.36/13,090.20 = 3,791.52/x
  3. Step 3: Cross multiply
    8,724.36x = 13,090.20 × 3,791.52
  4. Step 4: Simplify right side
    8,724.36x = 49,631,755.10
  5. Step 5: Solve for x
    x = 49,631,755.10/8,724.36
  6. Step 6: Final answer
    x = 5,688.87

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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.