Home / 13,120.64-19,677.60-3,884.48

Finding the Fourth Proportional to 13,120.64, 19,677.60 and 3,884.48

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Solution

The fourth proportional to 13,120.64, 19,677.60 and 3,884.48 is: 5,825.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.64 : 19,677.60 = 3,884.48 : x
  2. Step 2: Convert to fraction form
    13,120.64/19,677.60 = 3,884.48/x
  3. Step 3: Cross multiply
    13,120.64x = 19,677.60 × 3,884.48
  4. Step 4: Simplify right side
    13,120.64x = 76,437,243.65
  5. Step 5: Solve for x
    x = 76,437,243.65/13,120.64
  6. Step 6: Final answer
    x = 5,825.73

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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.