Home / 11,405.20-17,100.40-4,829.60

Finding the Fourth Proportional to 11,405.20, 17,100.40 and 4,829.60

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Solution

The fourth proportional to 11,405.20, 17,100.40 and 4,829.60 is: 7,241.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405.20 : 17,100.40 = 4,829.60 : x
  2. Step 2: Convert to fraction form
    11,405.20/17,100.40 = 4,829.60/x
  3. Step 3: Cross multiply
    11,405.20x = 17,100.40 × 4,829.60
  4. Step 4: Simplify right side
    11,405.20x = 82,588,091.84
  5. Step 5: Solve for x
    x = 82,588,091.84/11,405.20
  6. Step 6: Final answer
    x = 7,241.27

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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.