Home / 8,112.41-12,163.38-3,182.55

Finding the Fourth Proportional to 8,112.41, 12,163.38 and 3,182.55

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Solution

The fourth proportional to 8,112.41, 12,163.38 and 3,182.55 is: 4,771.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.41 : 12,163.38 = 3,182.55 : x
  2. Step 2: Convert to fraction form
    8,112.41/12,163.38 = 3,182.55/x
  3. Step 3: Cross multiply
    8,112.41x = 12,163.38 × 3,182.55
  4. Step 4: Simplify right side
    8,112.41x = 38,710,565.02
  5. Step 5: Solve for x
    x = 38,710,565.02/8,112.41
  6. Step 6: Final answer
    x = 4,771.77

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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.