Home / 12,133.48-18,198.20-3,369.28

Finding the Fourth Proportional to 12,133.48, 18,198.20 and 3,369.28

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Solution

The fourth proportional to 12,133.48, 18,198.20 and 3,369.28 is: 5,053.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.48 : 18,198.20 = 3,369.28 : x
  2. Step 2: Convert to fraction form
    12,133.48/18,198.20 = 3,369.28/x
  3. Step 3: Cross multiply
    12,133.48x = 18,198.20 × 3,369.28
  4. Step 4: Simplify right side
    12,133.48x = 61,314,831.30
  5. Step 5: Solve for x
    x = 61,314,831.30/12,133.48
  6. Step 6: Final answer
    x = 5,053.36

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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.