Home / 13,556.88-20,344.20-4,791.44

Finding the Fourth Proportional to 13,556.88, 20,344.20 and 4,791.44

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Solution

The fourth proportional to 13,556.88, 20,344.20 and 4,791.44 is: 7,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.88 : 20,344.20 = 4,791.44 : x
  2. Step 2: Convert to fraction form
    13,556.88/20,344.20 = 4,791.44/x
  3. Step 3: Cross multiply
    13,556.88x = 20,344.20 × 4,791.44
  4. Step 4: Simplify right side
    13,556.88x = 97,478,013.65
  5. Step 5: Solve for x
    x = 97,478,013.65/13,556.88
  6. Step 6: Final answer
    x = 7,190.30

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1.5x scale

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.