Home / 11,696.51-16,142.28-6,392.12

Finding the Fourth Proportional to 11,696.51, 16,142.28 and 6,392.12

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Solution

The fourth proportional to 11,696.51, 16,142.28 and 6,392.12 is: 8,821.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,696.51 : 16,142.28 = 6,392.12 : x
  2. Step 2: Convert to fraction form
    11,696.51/16,142.28 = 6,392.12/x
  3. Step 3: Cross multiply
    11,696.51x = 16,142.28 × 6,392.12
  4. Step 4: Simplify right side
    11,696.51x = 103,183,310.12
  5. Step 5: Solve for x
    x = 103,183,310.12/11,696.51
  6. Step 6: Final answer
    x = 8,821.72

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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.