Home / 8,119.07-12,178.61-1,963.07

Finding the Fourth Proportional to 8,119.07, 12,178.61 and 1,963.07

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Solution

The fourth proportional to 8,119.07, 12,178.61 and 1,963.07 is: 2,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.07 : 12,178.61 = 1,963.07 : x
  2. Step 2: Convert to fraction form
    8,119.07/12,178.61 = 1,963.07/x
  3. Step 3: Cross multiply
    8,119.07x = 12,178.61 × 1,963.07
  4. Step 4: Simplify right side
    8,119.07x = 23,907,393.22
  5. Step 5: Solve for x
    x = 23,907,393.22/8,119.07
  6. Step 6: Final answer
    x = 2,944.60

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Similar ratio
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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.