Home / 8,268.02-12,399.40-2,719.88

Finding the Fourth Proportional to 8,268.02, 12,399.40 and 2,719.88

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Solution

The fourth proportional to 8,268.02, 12,399.40 and 2,719.88 is: 4,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,268.02 : 12,399.40 = 2,719.88 : x
  2. Step 2: Convert to fraction form
    8,268.02/12,399.40 = 2,719.88/x
  3. Step 3: Cross multiply
    8,268.02x = 12,399.40 × 2,719.88
  4. Step 4: Simplify right side
    8,268.02x = 33,724,875.62
  5. Step 5: Solve for x
    x = 33,724,875.62/8,268.02
  6. Step 6: Final answer
    x = 4,078.95

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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.