Home / 11,153.58-16,731.38-7,961.23

Finding the Fourth Proportional to 11,153.58, 16,731.38 and 7,961.23

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Solution

The fourth proportional to 11,153.58, 16,731.38 and 7,961.23 is: 11,942.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.58 : 16,731.38 = 7,961.23 : x
  2. Step 2: Convert to fraction form
    11,153.58/16,731.38 = 7,961.23/x
  3. Step 3: Cross multiply
    11,153.58x = 16,731.38 × 7,961.23
  4. Step 4: Simplify right side
    11,153.58x = 133,202,364.40
  5. Step 5: Solve for x
    x = 133,202,364.40/11,153.58
  6. Step 6: Final answer
    x = 11,942.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.