Home / 12,918.56-19,361.31-11,245.84

Finding the Fourth Proportional to 12,918.56, 19,361.31 and 11,245.84

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Solution

The fourth proportional to 12,918.56, 19,361.31 and 11,245.84 is: 16,854.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918.56 : 19,361.31 = 11,245.84 : x
  2. Step 2: Convert to fraction form
    12,918.56/19,361.31 = 11,245.84/x
  3. Step 3: Cross multiply
    12,918.56x = 19,361.31 × 11,245.84
  4. Step 4: Simplify right side
    12,918.56x = 217,734,103.88
  5. Step 5: Solve for x
    x = 217,734,103.88/12,918.56
  6. Step 6: Final answer
    x = 16,854.37

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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.