Home / 12,906.64-19,361.46-5,511.94

Finding the Fourth Proportional to 12,906.64, 19,361.46 and 5,511.94

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Solution

The fourth proportional to 12,906.64, 19,361.46 and 5,511.94 is: 8,268.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906.64 : 19,361.46 = 5,511.94 : x
  2. Step 2: Convert to fraction form
    12,906.64/19,361.46 = 5,511.94/x
  3. Step 3: Cross multiply
    12,906.64x = 19,361.46 × 5,511.94
  4. Step 4: Simplify right side
    12,906.64x = 106,719,205.83
  5. Step 5: Solve for x
    x = 106,719,205.83/12,906.64
  6. Step 6: Final answer
    x = 8,268.55

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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.