Home / 10,851.21-14,974.92-6,135.75

Finding the Fourth Proportional to 10,851.21, 14,974.92 and 6,135.75

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Solution

The fourth proportional to 10,851.21, 14,974.92 and 6,135.75 is: 8,467.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,851.21 : 14,974.92 = 6,135.75 : x
  2. Step 2: Convert to fraction form
    10,851.21/14,974.92 = 6,135.75/x
  3. Step 3: Cross multiply
    10,851.21x = 14,974.92 × 6,135.75
  4. Step 4: Simplify right side
    10,851.21x = 91,882,365.39
  5. Step 5: Solve for x
    x = 91,882,365.39/10,851.21
  6. Step 6: Final answer
    x = 8,467.48

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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.