Home / 13,721.00-20,579.10-3,857.93

Finding the Fourth Proportional to 13,721.00, 20,579.10 and 3,857.93

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Solution

The fourth proportional to 13,721.00, 20,579.10 and 3,857.93 is: 5,786.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.00 : 20,579.10 = 3,857.93 : x
  2. Step 2: Convert to fraction form
    13,721.00/20,579.10 = 3,857.93/x
  3. Step 3: Cross multiply
    13,721.00x = 20,579.10 × 3,857.93
  4. Step 4: Simplify right side
    13,721.00x = 79,392,727.26
  5. Step 5: Solve for x
    x = 79,392,727.26/13,721.00
  6. Step 6: Final answer
    x = 5,786.22

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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.