Home / 11,928.94-16,477.43-9,079

Finding the Fourth Proportional to 11,928.94, 16,477.43 and 9,079

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Solution

The fourth proportional to 11,928.94, 16,477.43 and 9,079 is: 12,540.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.94 : 16,477.43 = 9,079 : x
  2. Step 2: Convert to fraction form
    11,928.94/16,477.43 = 9,079/x
  3. Step 3: Cross multiply
    11,928.94x = 16,477.43 × 9,079
  4. Step 4: Simplify right side
    11,928.94x = 149,598,586.97
  5. Step 5: Solve for x
    x = 149,598,586.97/11,928.94
  6. Step 6: Final answer
    x = 12,540.81

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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.