Home / 13,906.42-19,137.81-11,196.34

Finding the Fourth Proportional to 13,906.42, 19,137.81 and 11,196.34

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Solution

The fourth proportional to 13,906.42, 19,137.81 and 11,196.34 is: 15,408.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.42 : 19,137.81 = 11,196.34 : x
  2. Step 2: Convert to fraction form
    13,906.42/19,137.81 = 11,196.34/x
  3. Step 3: Cross multiply
    13,906.42x = 19,137.81 × 11,196.34
  4. Step 4: Simplify right side
    13,906.42x = 214,273,427.62
  5. Step 5: Solve for x
    x = 214,273,427.62/13,906.42
  6. Step 6: Final answer
    x = 15,408.24

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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.