Home / 11,942.91-16,485.75-7,962.57

Finding the Fourth Proportional to 11,942.91, 16,485.75 and 7,962.57

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Solution

The fourth proportional to 11,942.91, 16,485.75 and 7,962.57 is: 10,991.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.91 : 16,485.75 = 7,962.57 : x
  2. Step 2: Convert to fraction form
    11,942.91/16,485.75 = 7,962.57/x
  3. Step 3: Cross multiply
    11,942.91x = 16,485.75 × 7,962.57
  4. Step 4: Simplify right side
    11,942.91x = 131,268,938.38
  5. Step 5: Solve for x
    x = 131,268,938.38/11,942.91
  6. Step 6: Final answer
    x = 10,991.37

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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.