Home / 13,119.38-19,673.28-3,757.28

Finding the Fourth Proportional to 13,119.38, 19,673.28 and 3,757.28

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Solution

The fourth proportional to 13,119.38, 19,673.28 and 3,757.28 is: 5,634.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.38 : 19,673.28 = 3,757.28 : x
  2. Step 2: Convert to fraction form
    13,119.38/19,673.28 = 3,757.28/x
  3. Step 3: Cross multiply
    13,119.38x = 19,673.28 × 3,757.28
  4. Step 4: Simplify right side
    13,119.38x = 73,917,923.11
  5. Step 5: Solve for x
    x = 73,917,923.11/13,119.38
  6. Step 6: Final answer
    x = 5,634.25

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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.