Home / 13,289.88-19,934.10-3,429.66

Finding the Fourth Proportional to 13,289.88, 19,934.10 and 3,429.66

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Solution

The fourth proportional to 13,289.88, 19,934.10 and 3,429.66 is: 5,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.88 : 19,934.10 = 3,429.66 : x
  2. Step 2: Convert to fraction form
    13,289.88/19,934.10 = 3,429.66/x
  3. Step 3: Cross multiply
    13,289.88x = 19,934.10 × 3,429.66
  4. Step 4: Simplify right side
    13,289.88x = 68,367,185.41
  5. Step 5: Solve for x
    x = 68,367,185.41/13,289.88
  6. Step 6: Final answer
    x = 5,144.30

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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.