Home / 13,871.97-19,145.01-7,823.37

Finding the Fourth Proportional to 13,871.97, 19,145.01 and 7,823.37

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Solution

The fourth proportional to 13,871.97, 19,145.01 and 7,823.37 is: 10,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.97 : 19,145.01 = 7,823.37 : x
  2. Step 2: Convert to fraction form
    13,871.97/19,145.01 = 7,823.37/x
  3. Step 3: Cross multiply
    13,871.97x = 19,145.01 × 7,823.37
  4. Step 4: Simplify right side
    13,871.97x = 149,778,496.88
  5. Step 5: Solve for x
    x = 149,778,496.88/13,871.97
  6. Step 6: Final answer
    x = 10,797.20

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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.