Home / 11,840.11-16,343.10-7,361.21

Finding the Fourth Proportional to 11,840.11, 16,343.10 and 7,361.21

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Solution

The fourth proportional to 11,840.11, 16,343.10 and 7,361.21 is: 10,160.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.11 : 16,343.10 = 7,361.21 : x
  2. Step 2: Convert to fraction form
    11,840.11/16,343.10 = 7,361.21/x
  3. Step 3: Cross multiply
    11,840.11x = 16,343.10 × 7,361.21
  4. Step 4: Simplify right side
    11,840.11x = 120,305,032.01
  5. Step 5: Solve for x
    x = 120,305,032.01/11,840.11
  6. Step 6: Final answer
    x = 10,160.81

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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.