Home / 11,326.91-16,990.49-3,429.47

Finding the Fourth Proportional to 11,326.91, 16,990.49 and 3,429.47

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Solution

The fourth proportional to 11,326.91, 16,990.49 and 3,429.47 is: 5,144.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.91 : 16,990.49 = 3,429.47 : x
  2. Step 2: Convert to fraction form
    11,326.91/16,990.49 = 3,429.47/x
  3. Step 3: Cross multiply
    11,326.91x = 16,990.49 × 3,429.47
  4. Step 4: Simplify right side
    11,326.91x = 58,268,426.79
  5. Step 5: Solve for x
    x = 58,268,426.79/11,326.91
  6. Step 6: Final answer
    x = 5,144.25

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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.