Home / 13,721.24-18,935.32-7,433.64

Finding the Fourth Proportional to 13,721.24, 18,935.32 and 7,433.64

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Solution

The fourth proportional to 13,721.24, 18,935.32 and 7,433.64 is: 10,258.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.24 : 18,935.32 = 7,433.64 : x
  2. Step 2: Convert to fraction form
    13,721.24/18,935.32 = 7,433.64/x
  3. Step 3: Cross multiply
    13,721.24x = 18,935.32 × 7,433.64
  4. Step 4: Simplify right side
    13,721.24x = 140,758,352.16
  5. Step 5: Solve for x
    x = 140,758,352.16/13,721.24
  6. Step 6: Final answer
    x = 10,258.43

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