Home / 13,182.20-19,771.84-3,321.48

Finding the Fourth Proportional to 13,182.20, 19,771.84 and 3,321.48

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Solution

The fourth proportional to 13,182.20, 19,771.84 and 3,321.48 is: 4,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.20 : 19,771.84 = 3,321.48 : x
  2. Step 2: Convert to fraction form
    13,182.20/19,771.84 = 3,321.48/x
  3. Step 3: Cross multiply
    13,182.20x = 19,771.84 × 3,321.48
  4. Step 4: Simplify right side
    13,182.20x = 65,671,771.12
  5. Step 5: Solve for x
    x = 65,671,771.12/13,182.20
  6. Step 6: Final answer
    x = 4,981.85

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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.