Home / 16,128.78-22,268.44-11,884.64

Finding the Fourth Proportional to 16,128.78, 22,268.44 and 11,884.64

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Solution

The fourth proportional to 16,128.78, 22,268.44 and 11,884.64 is: 16,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,128.78 : 22,268.44 = 11,884.64 : x
  2. Step 2: Convert to fraction form
    16,128.78/22,268.44 = 11,884.64/x
  3. Step 3: Cross multiply
    16,128.78x = 22,268.44 × 11,884.64
  4. Step 4: Simplify right side
    16,128.78x = 264,652,361.02
  5. Step 5: Solve for x
    x = 264,652,361.02/16,128.78
  6. Step 6: Final answer
    x = 16,408.70

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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.