Home / 12,126.53-18,189.73-3,361.41

Finding the Fourth Proportional to 12,126.53, 18,189.73 and 3,361.41

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Solution

The fourth proportional to 12,126.53, 18,189.73 and 3,361.41 is: 5,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.53 : 18,189.73 = 3,361.41 : x
  2. Step 2: Convert to fraction form
    12,126.53/18,189.73 = 3,361.41/x
  3. Step 3: Cross multiply
    12,126.53x = 18,189.73 × 3,361.41
  4. Step 4: Simplify right side
    12,126.53x = 61,143,123.51
  5. Step 5: Solve for x
    x = 61,143,123.51/12,126.53
  6. Step 6: Final answer
    x = 5,042.10

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1.5x scale

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.