Home / 8,103.20-12,156.44-2,556.41

Finding the Fourth Proportional to 8,103.20, 12,156.44 and 2,556.41

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Solution

The fourth proportional to 8,103.20, 12,156.44 and 2,556.41 is: 3,835.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.20 : 12,156.44 = 2,556.41 : x
  2. Step 2: Convert to fraction form
    8,103.20/12,156.44 = 2,556.41/x
  3. Step 3: Cross multiply
    8,103.20x = 12,156.44 × 2,556.41
  4. Step 4: Simplify right side
    8,103.20x = 31,076,771.22
  5. Step 5: Solve for x
    x = 31,076,771.22/8,103.20
  6. Step 6: Final answer
    x = 3,835.13

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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.