Home / 13,190.44-19,786.62-4,421.80

Finding the Fourth Proportional to 13,190.44, 19,786.62 and 4,421.80

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Solution

The fourth proportional to 13,190.44, 19,786.62 and 4,421.80 is: 6,633.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.44 : 19,786.62 = 4,421.80 : x
  2. Step 2: Convert to fraction form
    13,190.44/19,786.62 = 4,421.80/x
  3. Step 3: Cross multiply
    13,190.44x = 19,786.62 × 4,421.80
  4. Step 4: Simplify right side
    13,190.44x = 87,492,476.32
  5. Step 5: Solve for x
    x = 87,492,476.32/13,190.44
  6. Step 6: Final answer
    x = 6,633.02

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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.