Home / 12,826.62-19,241.94-5,431.14

Finding the Fourth Proportional to 12,826.62, 19,241.94 and 5,431.14

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Solution

The fourth proportional to 12,826.62, 19,241.94 and 5,431.14 is: 8,147.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826.62 : 19,241.94 = 5,431.14 : x
  2. Step 2: Convert to fraction form
    12,826.62/19,241.94 = 5,431.14/x
  3. Step 3: Cross multiply
    12,826.62x = 19,241.94 × 5,431.14
  4. Step 4: Simplify right side
    12,826.62x = 104,505,670.01
  5. Step 5: Solve for x
    x = 104,505,670.01/12,826.62
  6. Step 6: Final answer
    x = 8,147.56

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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.