Home / 13,129.97-19,686.24-6,882.44

Finding the Fourth Proportional to 13,129.97, 19,686.24 and 6,882.44

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Solution

The fourth proportional to 13,129.97, 19,686.24 and 6,882.44 is: 10,319.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.97 : 19,686.24 = 6,882.44 : x
  2. Step 2: Convert to fraction form
    13,129.97/19,686.24 = 6,882.44/x
  3. Step 3: Cross multiply
    13,129.97x = 19,686.24 × 6,882.44
  4. Step 4: Simplify right side
    13,129.97x = 135,489,267.19
  5. Step 5: Solve for x
    x = 135,489,267.19/13,129.97
  6. Step 6: Final answer
    x = 10,319.09

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1.5x scale

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.