Home / 11,115.64-16,668.06-3,322.36

Finding the Fourth Proportional to 11,115.64, 16,668.06 and 3,322.36

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Solution

The fourth proportional to 11,115.64, 16,668.06 and 3,322.36 is: 4,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.64 : 16,668.06 = 3,322.36 : x
  2. Step 2: Convert to fraction form
    11,115.64/16,668.06 = 3,322.36/x
  3. Step 3: Cross multiply
    11,115.64x = 16,668.06 × 3,322.36
  4. Step 4: Simplify right side
    11,115.64x = 55,377,295.82
  5. Step 5: Solve for x
    x = 55,377,295.82/11,115.64
  6. Step 6: Final answer
    x = 4,981.93

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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.