Home / 13,871.00-20,808.57-5,105.24

Finding the Fourth Proportional to 13,871.00, 20,808.57 and 5,105.24

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Solution

The fourth proportional to 13,871.00, 20,808.57 and 5,105.24 is: 7,658.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.00 : 20,808.57 = 5,105.24 : x
  2. Step 2: Convert to fraction form
    13,871.00/20,808.57 = 5,105.24/x
  3. Step 3: Cross multiply
    13,871.00x = 20,808.57 × 5,105.24
  4. Step 4: Simplify right side
    13,871.00x = 106,232,839.73
  5. Step 5: Solve for x
    x = 106,232,839.73/13,871.00
  6. Step 6: Final answer
    x = 7,658.63

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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.