Home / 11,816.81-17,721.06-3,494.60

Finding the Fourth Proportional to 11,816.81, 17,721.06 and 3,494.60

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Solution

The fourth proportional to 11,816.81, 17,721.06 and 3,494.60 is: 5,240.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.81 : 17,721.06 = 3,494.60 : x
  2. Step 2: Convert to fraction form
    11,816.81/17,721.06 = 3,494.60/x
  3. Step 3: Cross multiply
    11,816.81x = 17,721.06 × 3,494.60
  4. Step 4: Simplify right side
    11,816.81x = 61,928,016.28
  5. Step 5: Solve for x
    x = 61,928,016.28/11,816.81
  6. Step 6: Final answer
    x = 5,240.67

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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.