Home / 13,839.26-19,098.60-7,871.79

Finding the Fourth Proportional to 13,839.26, 19,098.60 and 7,871.79

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Solution

The fourth proportional to 13,839.26, 19,098.60 and 7,871.79 is: 10,863.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.26 : 19,098.60 = 7,871.79 : x
  2. Step 2: Convert to fraction form
    13,839.26/19,098.60 = 7,871.79/x
  3. Step 3: Cross multiply
    13,839.26x = 19,098.60 × 7,871.79
  4. Step 4: Simplify right side
    13,839.26x = 150,340,168.49
  5. Step 5: Solve for x
    x = 150,340,168.49/13,839.26
  6. Step 6: Final answer
    x = 10,863.31

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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.