Home / 8,025.18-12,028.98-4,129.80

Finding the Fourth Proportional to 8,025.18, 12,028.98 and 4,129.80

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Solution

The fourth proportional to 8,025.18, 12,028.98 and 4,129.80 is: 6,190.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,025.18 : 12,028.98 = 4,129.80 : x
  2. Step 2: Convert to fraction form
    8,025.18/12,028.98 = 4,129.80/x
  3. Step 3: Cross multiply
    8,025.18x = 12,028.98 × 4,129.80
  4. Step 4: Simplify right side
    8,025.18x = 49,677,281.60
  5. Step 5: Solve for x
    x = 49,677,281.60/8,025.18
  6. Step 6: Final answer
    x = 6,190.18

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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.