Home / 12,142.36-18,213.63-3,377.26

Finding the Fourth Proportional to 12,142.36, 18,213.63 and 3,377.26

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Solution

The fourth proportional to 12,142.36, 18,213.63 and 3,377.26 is: 5,065.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142.36 : 18,213.63 = 3,377.26 : x
  2. Step 2: Convert to fraction form
    12,142.36/18,213.63 = 3,377.26/x
  3. Step 3: Cross multiply
    12,142.36x = 18,213.63 × 3,377.26
  4. Step 4: Simplify right side
    12,142.36x = 61,512,164.05
  5. Step 5: Solve for x
    x = 61,512,164.05/12,142.36
  6. Step 6: Final answer
    x = 5,065.92

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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.