Home / 13,788.97-20,673.37-4,423.66

Finding the Fourth Proportional to 13,788.97, 20,673.37 and 4,423.66

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Solution

The fourth proportional to 13,788.97, 20,673.37 and 4,423.66 is: 6,632.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.97 : 20,673.37 = 4,423.66 : x
  2. Step 2: Convert to fraction form
    13,788.97/20,673.37 = 4,423.66/x
  3. Step 3: Cross multiply
    13,788.97x = 20,673.37 × 4,423.66
  4. Step 4: Simplify right side
    13,788.97x = 91,451,959.93
  5. Step 5: Solve for x
    x = 91,451,959.93/13,788.97
  6. Step 6: Final answer
    x = 6,632.25

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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.