Home / 11,691.24-16,125.39-7,213.37

Finding the Fourth Proportional to 11,691.24, 16,125.39 and 7,213.37

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Solution

The fourth proportional to 11,691.24, 16,125.39 and 7,213.37 is: 9,949.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.24 : 16,125.39 = 7,213.37 : x
  2. Step 2: Convert to fraction form
    11,691.24/16,125.39 = 7,213.37/x
  3. Step 3: Cross multiply
    11,691.24x = 16,125.39 × 7,213.37
  4. Step 4: Simplify right side
    11,691.24x = 116,318,323.84
  5. Step 5: Solve for x
    x = 116,318,323.84/11,691.24
  6. Step 6: Final answer
    x = 9,949.19

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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.