Home / 11,892.11-16,411.23-7,175.48

Finding the Fourth Proportional to 11,892.11, 16,411.23 and 7,175.48

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Solution

The fourth proportional to 11,892.11, 16,411.23 and 7,175.48 is: 9,902.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.11 : 16,411.23 = 7,175.48 : x
  2. Step 2: Convert to fraction form
    11,892.11/16,411.23 = 7,175.48/x
  3. Step 3: Cross multiply
    11,892.11x = 16,411.23 × 7,175.48
  4. Step 4: Simplify right side
    11,892.11x = 117,758,452.64
  5. Step 5: Solve for x
    x = 117,758,452.64/11,892.11
  6. Step 6: Final answer
    x = 9,902.23

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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.