Home / 8,199.55-12,288.78-3,518.36

Finding the Fourth Proportional to 8,199.55, 12,288.78 and 3,518.36

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Solution

The fourth proportional to 8,199.55, 12,288.78 and 3,518.36 is: 5,273.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199.55 : 12,288.78 = 3,518.36 : x
  2. Step 2: Convert to fraction form
    8,199.55/12,288.78 = 3,518.36/x
  3. Step 3: Cross multiply
    8,199.55x = 12,288.78 × 3,518.36
  4. Step 4: Simplify right side
    8,199.55x = 43,236,352.00
  5. Step 5: Solve for x
    x = 43,236,352.00/8,199.55
  6. Step 6: Final answer
    x = 5,273.02

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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.