Home / 11,811.84-17,722.26-4,419.60

Finding the Fourth Proportional to 11,811.84, 17,722.26 and 4,419.60

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Solution

The fourth proportional to 11,811.84, 17,722.26 and 4,419.60 is: 6,631.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.84 : 17,722.26 = 4,419.60 : x
  2. Step 2: Convert to fraction form
    11,811.84/17,722.26 = 4,419.60/x
  3. Step 3: Cross multiply
    11,811.84x = 17,722.26 × 4,419.60
  4. Step 4: Simplify right side
    11,811.84x = 78,325,300.30
  5. Step 5: Solve for x
    x = 78,325,300.30/11,811.84
  6. Step 6: Final answer
    x = 6,631.08

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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.