Home / 13,791.72-19,032.24-7,504.20

Finding the Fourth Proportional to 13,791.72, 19,032.24 and 7,504.20

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Solution

The fourth proportional to 13,791.72, 19,032.24 and 7,504.20 is: 10,355.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.72 : 19,032.24 = 7,504.20 : x
  2. Step 2: Convert to fraction form
    13,791.72/19,032.24 = 7,504.20/x
  3. Step 3: Cross multiply
    13,791.72x = 19,032.24 × 7,504.20
  4. Step 4: Simplify right side
    13,791.72x = 142,821,735.41
  5. Step 5: Solve for x
    x = 142,821,735.41/13,791.72
  6. Step 6: Final answer
    x = 10,355.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.