Home / 11,696.37-16,140.97-6,391.18

Finding the Fourth Proportional to 11,696.37, 16,140.97 and 6,391.18

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Solution

The fourth proportional to 11,696.37, 16,140.97 and 6,391.18 is: 8,819.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,696.37 : 16,140.97 = 6,391.18 : x
  2. Step 2: Convert to fraction form
    11,696.37/16,140.97 = 6,391.18/x
  3. Step 3: Cross multiply
    11,696.37x = 16,140.97 × 6,391.18
  4. Step 4: Simplify right side
    11,696.37x = 103,159,844.64
  5. Step 5: Solve for x
    x = 103,159,844.64/11,696.37
  6. Step 6: Final answer
    x = 8,819.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.