Home / 11,326.06-16,989.67-3,428.37

Finding the Fourth Proportional to 11,326.06, 16,989.67 and 3,428.37

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Solution

The fourth proportional to 11,326.06, 16,989.67 and 3,428.37 is: 5,142.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.06 : 16,989.67 = 3,428.37 : x
  2. Step 2: Convert to fraction form
    11,326.06/16,989.67 = 3,428.37/x
  3. Step 3: Cross multiply
    11,326.06x = 16,989.67 × 3,428.37
  4. Step 4: Simplify right side
    11,326.06x = 58,246,874.94
  5. Step 5: Solve for x
    x = 58,246,874.94/11,326.06
  6. Step 6: Final answer
    x = 5,142.73

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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.