Home / 13,576.33-20,351.87-5,261.77

Finding the Fourth Proportional to 13,576.33, 20,351.87 and 5,261.77

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Solution

The fourth proportional to 13,576.33, 20,351.87 and 5,261.77 is: 7,887.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.33 : 20,351.87 = 5,261.77 : x
  2. Step 2: Convert to fraction form
    13,576.33/20,351.87 = 5,261.77/x
  3. Step 3: Cross multiply
    13,576.33x = 20,351.87 × 5,261.77
  4. Step 4: Simplify right side
    13,576.33x = 107,086,859.01
  5. Step 5: Solve for x
    x = 107,086,859.01/13,576.33
  6. Step 6: Final answer
    x = 7,887.76

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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.