Home / 11,696.59-16,139.43-6,660.91

Finding the Fourth Proportional to 11,696.59, 16,139.43 and 6,660.91

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Solution

The fourth proportional to 11,696.59, 16,139.43 and 6,660.91 is: 9,190.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,696.59 : 16,139.43 = 6,660.91 : x
  2. Step 2: Convert to fraction form
    11,696.59/16,139.43 = 6,660.91/x
  3. Step 3: Cross multiply
    11,696.59x = 16,139.43 × 6,660.91
  4. Step 4: Simplify right side
    11,696.59x = 107,503,290.68
  5. Step 5: Solve for x
    x = 107,503,290.68/11,696.59
  6. Step 6: Final answer
    x = 9,190.99

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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.