Home / 12,236.89-18,361.22-6,690.01

Finding the Fourth Proportional to 12,236.89, 18,361.22 and 6,690.01

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Solution

The fourth proportional to 12,236.89, 18,361.22 and 6,690.01 is: 10,038.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.89 : 18,361.22 = 6,690.01 : x
  2. Step 2: Convert to fraction form
    12,236.89/18,361.22 = 6,690.01/x
  3. Step 3: Cross multiply
    12,236.89x = 18,361.22 × 6,690.01
  4. Step 4: Simplify right side
    12,236.89x = 122,836,745.41
  5. Step 5: Solve for x
    x = 122,836,745.41/12,236.89
  6. Step 6: Final answer
    x = 10,038.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.