Home / 13,873.22-20,811.90-5,107.47

Finding the Fourth Proportional to 13,873.22, 20,811.90 and 5,107.47

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Solution

The fourth proportional to 13,873.22, 20,811.90 and 5,107.47 is: 7,661.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.22 : 20,811.90 = 5,107.47 : x
  2. Step 2: Convert to fraction form
    13,873.22/20,811.90 = 5,107.47/x
  3. Step 3: Cross multiply
    13,873.22x = 20,811.90 × 5,107.47
  4. Step 4: Simplify right side
    13,873.22x = 106,296,154.89
  5. Step 5: Solve for x
    x = 106,296,154.89/13,873.22
  6. Step 6: Final answer
    x = 7,661.97

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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.