Home / 12,112.94-16,611.56-11,607.79

Finding the Fourth Proportional to 12,112.94, 16,611.56 and 11,607.79

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Solution

The fourth proportional to 12,112.94, 16,611.56 and 11,607.79 is: 15,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.94 : 16,611.56 = 11,607.79 : x
  2. Step 2: Convert to fraction form
    12,112.94/16,611.56 = 11,607.79/x
  3. Step 3: Cross multiply
    12,112.94x = 16,611.56 × 11,607.79
  4. Step 4: Simplify right side
    12,112.94x = 192,823,500.05
  5. Step 5: Solve for x
    x = 192,823,500.05/12,112.94
  6. Step 6: Final answer
    x = 15,918.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.