Home / 8,177.79-12,268.74-3,245.80

Finding the Fourth Proportional to 8,177.79, 12,268.74 and 3,245.80

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Solution

The fourth proportional to 8,177.79, 12,268.74 and 3,245.80 is: 4,869.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,177.79 : 12,268.74 = 3,245.80 : x
  2. Step 2: Convert to fraction form
    8,177.79/12,268.74 = 3,245.80/x
  3. Step 3: Cross multiply
    8,177.79x = 12,268.74 × 3,245.80
  4. Step 4: Simplify right side
    8,177.79x = 39,821,868.18
  5. Step 5: Solve for x
    x = 39,821,868.18/8,177.79
  6. Step 6: Final answer
    x = 4,869.51

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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.