Home / 11,922.35-17,884.53-3,157.13

Finding the Fourth Proportional to 11,922.35, 17,884.53 and 3,157.13

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Solution

The fourth proportional to 11,922.35, 17,884.53 and 3,157.13 is: 4,735.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.35 : 17,884.53 = 3,157.13 : x
  2. Step 2: Convert to fraction form
    11,922.35/17,884.53 = 3,157.13/x
  3. Step 3: Cross multiply
    11,922.35x = 17,884.53 × 3,157.13
  4. Step 4: Simplify right side
    11,922.35x = 56,463,830.91
  5. Step 5: Solve for x
    x = 56,463,830.91/11,922.35
  6. Step 6: Final answer
    x = 4,735.97

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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.