Home / 8,178.09-12,268.76-2,984.37

Finding the Fourth Proportional to 8,178.09, 12,268.76 and 2,984.37

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Solution

The fourth proportional to 8,178.09, 12,268.76 and 2,984.37 is: 4,477.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.09 : 12,268.76 = 2,984.37 : x
  2. Step 2: Convert to fraction form
    8,178.09/12,268.76 = 2,984.37/x
  3. Step 3: Cross multiply
    8,178.09x = 12,268.76 × 2,984.37
  4. Step 4: Simplify right side
    8,178.09x = 36,614,504.36
  5. Step 5: Solve for x
    x = 36,614,504.36/8,178.09
  6. Step 6: Final answer
    x = 4,477.15

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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.