Home / 8,190.45-12,283.84-3,258.76

Finding the Fourth Proportional to 8,190.45, 12,283.84 and 3,258.76

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Solution

The fourth proportional to 8,190.45, 12,283.84 and 3,258.76 is: 4,887.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.45 : 12,283.84 = 3,258.76 : x
  2. Step 2: Convert to fraction form
    8,190.45/12,283.84 = 3,258.76/x
  3. Step 3: Cross multiply
    8,190.45x = 12,283.84 × 3,258.76
  4. Step 4: Simplify right side
    8,190.45x = 40,030,086.44
  5. Step 5: Solve for x
    x = 40,030,086.44/8,190.45
  6. Step 6: Final answer
    x = 4,887.41

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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.