Home / 13,326.91-19,986.88-3,964.41

Finding the Fourth Proportional to 13,326.91, 19,986.88 and 3,964.41

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Solution

The fourth proportional to 13,326.91, 19,986.88 and 3,964.41 is: 5,945.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.91 : 19,986.88 = 3,964.41 : x
  2. Step 2: Convert to fraction form
    13,326.91/19,986.88 = 3,964.41/x
  3. Step 3: Cross multiply
    13,326.91x = 19,986.88 × 3,964.41
  4. Step 4: Simplify right side
    13,326.91x = 79,236,186.94
  5. Step 5: Solve for x
    x = 79,236,186.94/13,326.91
  6. Step 6: Final answer
    x = 5,945.58

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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.