Home / 8,556.20-12,825.14-4,391.80

Finding the Fourth Proportional to 8,556.20, 12,825.14 and 4,391.80

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Solution

The fourth proportional to 8,556.20, 12,825.14 and 4,391.80 is: 6,583.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.20 : 12,825.14 = 4,391.80 : x
  2. Step 2: Convert to fraction form
    8,556.20/12,825.14 = 4,391.80/x
  3. Step 3: Cross multiply
    8,556.20x = 12,825.14 × 4,391.80
  4. Step 4: Simplify right side
    8,556.20x = 56,325,449.85
  5. Step 5: Solve for x
    x = 56,325,449.85/8,556.20
  6. Step 6: Final answer
    x = 6,583.00

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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.