Home / 12,743.53-17,579.94-8,268.68

Finding the Fourth Proportional to 12,743.53, 17,579.94 and 8,268.68

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Solution

The fourth proportional to 12,743.53, 17,579.94 and 8,268.68 is: 11,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743.53 : 17,579.94 = 8,268.68 : x
  2. Step 2: Convert to fraction form
    12,743.53/17,579.94 = 8,268.68/x
  3. Step 3: Cross multiply
    12,743.53x = 17,579.94 × 8,268.68
  4. Step 4: Simplify right side
    12,743.53x = 145,362,911.22
  5. Step 5: Solve for x
    x = 145,362,911.22/12,743.53
  6. Step 6: Final answer
    x = 11,406.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.