Home / 8,142.96-12,190.60-7,364.76

Finding the Fourth Proportional to 8,142.96, 12,190.60 and 7,364.76

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Solution

The fourth proportional to 8,142.96, 12,190.60 and 7,364.76 is: 11,025.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.96 : 12,190.60 = 7,364.76 : x
  2. Step 2: Convert to fraction form
    8,142.96/12,190.60 = 7,364.76/x
  3. Step 3: Cross multiply
    8,142.96x = 12,190.60 × 7,364.76
  4. Step 4: Simplify right side
    8,142.96x = 89,780,843.26
  5. Step 5: Solve for x
    x = 89,780,843.26/8,142.96
  6. Step 6: Final answer
    x = 11,025.58

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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.