Home / 19,717.21-27,209.29-10,764.87

Finding the Fourth Proportional to 19,717.21, 27,209.29 and 10,764.87

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Solution

The fourth proportional to 19,717.21, 27,209.29 and 10,764.87 is: 14,855.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,717.21 : 27,209.29 = 10,764.87 : x
  2. Step 2: Convert to fraction form
    19,717.21/27,209.29 = 10,764.87/x
  3. Step 3: Cross multiply
    19,717.21x = 27,209.29 × 10,764.87
  4. Step 4: Simplify right side
    19,717.21x = 292,904,469.64
  5. Step 5: Solve for x
    x = 292,904,469.64/19,717.21
  6. Step 6: Final answer
    x = 14,855.27

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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.