Home / 11,720.33-17,582.20-3,400.39

Finding the Fourth Proportional to 11,720.33, 17,582.20 and 3,400.39

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Solution

The fourth proportional to 11,720.33, 17,582.20 and 3,400.39 is: 5,101.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.33 : 17,582.20 = 3,400.39 : x
  2. Step 2: Convert to fraction form
    11,720.33/17,582.20 = 3,400.39/x
  3. Step 3: Cross multiply
    11,720.33x = 17,582.20 × 3,400.39
  4. Step 4: Simplify right side
    11,720.33x = 59,786,284.60
  5. Step 5: Solve for x
    x = 59,786,284.60/11,720.33
  6. Step 6: Final answer
    x = 5,101.08

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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.