Home / 8,179.02-12,268.53-5,405.04

Finding the Fourth Proportional to 8,179.02, 12,268.53 and 5,405.04

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Solution

The fourth proportional to 8,179.02, 12,268.53 and 5,405.04 is: 8,107.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.02 : 12,268.53 = 5,405.04 : x
  2. Step 2: Convert to fraction form
    8,179.02/12,268.53 = 5,405.04/x
  3. Step 3: Cross multiply
    8,179.02x = 12,268.53 × 5,405.04
  4. Step 4: Simplify right side
    8,179.02x = 66,311,895.39
  5. Step 5: Solve for x
    x = 66,311,895.39/8,179.02
  6. Step 6: Final answer
    x = 8,107.56

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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.