Home / 8,133.18-12,194.34-2,938.38

Finding the Fourth Proportional to 8,133.18, 12,194.34 and 2,938.38

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Solution

The fourth proportional to 8,133.18, 12,194.34 and 2,938.38 is: 4,405.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.18 : 12,194.34 = 2,938.38 : x
  2. Step 2: Convert to fraction form
    8,133.18/12,194.34 = 2,938.38/x
  3. Step 3: Cross multiply
    8,133.18x = 12,194.34 × 2,938.38
  4. Step 4: Simplify right side
    8,133.18x = 35,831,604.77
  5. Step 5: Solve for x
    x = 35,831,604.77/8,133.18
  6. Step 6: Final answer
    x = 4,405.61

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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.