Home / 8,018.40-12,021.84-4,119.60

Finding the Fourth Proportional to 8,018.40, 12,021.84 and 4,119.60

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Solution

The fourth proportional to 8,018.40, 12,021.84 and 4,119.60 is: 6,176.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,018.40 : 12,021.84 = 4,119.60 : x
  2. Step 2: Convert to fraction form
    8,018.40/12,021.84 = 4,119.60/x
  3. Step 3: Cross multiply
    8,018.40x = 12,021.84 × 4,119.60
  4. Step 4: Simplify right side
    8,018.40x = 49,525,172.06
  5. Step 5: Solve for x
    x = 49,525,172.06/8,018.40
  6. Step 6: Final answer
    x = 6,176.44

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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.