Home / 11,720.07-17,579.55-3,399.90

Finding the Fourth Proportional to 11,720.07, 17,579.55 and 3,399.90

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Solution

The fourth proportional to 11,720.07, 17,579.55 and 3,399.90 is: 5,099.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.07 : 17,579.55 = 3,399.90 : x
  2. Step 2: Convert to fraction form
    11,720.07/17,579.55 = 3,399.90/x
  3. Step 3: Cross multiply
    11,720.07x = 17,579.55 × 3,399.90
  4. Step 4: Simplify right side
    11,720.07x = 59,768,712.05
  5. Step 5: Solve for x
    x = 59,768,712.05/11,720.07
  6. Step 6: Final answer
    x = 5,099.69

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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.