Home / 9,720.94-14,583.54-3,147.80

Finding the Fourth Proportional to 9,720.94, 14,583.54 and 3,147.80

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Solution

The fourth proportional to 9,720.94, 14,583.54 and 3,147.80 is: 4,722.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.94 : 14,583.54 = 3,147.80 : x
  2. Step 2: Convert to fraction form
    9,720.94/14,583.54 = 3,147.80/x
  3. Step 3: Cross multiply
    9,720.94x = 14,583.54 × 3,147.80
  4. Step 4: Simplify right side
    9,720.94x = 45,906,067.21
  5. Step 5: Solve for x
    x = 45,906,067.21/9,720.94
  6. Step 6: Final answer
    x = 4,722.39

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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.