Home / 11,315.93-16,974.03-3,418.51

Finding the Fourth Proportional to 11,315.93, 16,974.03 and 3,418.51

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Solution

The fourth proportional to 11,315.93, 16,974.03 and 3,418.51 is: 5,127.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.93 : 16,974.03 = 3,418.51 : x
  2. Step 2: Convert to fraction form
    11,315.93/16,974.03 = 3,418.51/x
  3. Step 3: Cross multiply
    11,315.93x = 16,974.03 × 3,418.51
  4. Step 4: Simplify right side
    11,315.93x = 58,025,960.22
  5. Step 5: Solve for x
    x = 58,025,960.22/11,315.93
  6. Step 6: Final answer
    x = 5,127.81

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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.