Home / 13,390.44-18,474.66-7,797.48

Finding the Fourth Proportional to 13,390.44, 18,474.66 and 7,797.48

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Solution

The fourth proportional to 13,390.44, 18,474.66 and 7,797.48 is: 10,758.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.44 : 18,474.66 = 7,797.48 : x
  2. Step 2: Convert to fraction form
    13,390.44/18,474.66 = 7,797.48/x
  3. Step 3: Cross multiply
    13,390.44x = 18,474.66 × 7,797.48
  4. Step 4: Simplify right side
    13,390.44x = 144,055,791.86
  5. Step 5: Solve for x
    x = 144,055,791.86/13,390.44
  6. Step 6: Final answer
    x = 10,758.11

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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.