Home / 11,619.60-17,419.64-8,099.25

Finding the Fourth Proportional to 11,619.60, 17,419.64 and 8,099.25

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Solution

The fourth proportional to 11,619.60, 17,419.64 and 8,099.25 is: 12,142.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.60 : 17,419.64 = 8,099.25 : x
  2. Step 2: Convert to fraction form
    11,619.60/17,419.64 = 8,099.25/x
  3. Step 3: Cross multiply
    11,619.60x = 17,419.64 × 8,099.25
  4. Step 4: Simplify right side
    11,619.60x = 141,085,978.77
  5. Step 5: Solve for x
    x = 141,085,978.77/11,619.60
  6. Step 6: Final answer
    x = 12,142.07

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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.