Home / 7,938.45-11,912.54-3,260.70

Finding the Fourth Proportional to 7,938.45, 11,912.54 and 3,260.70

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Solution

The fourth proportional to 7,938.45, 11,912.54 and 3,260.70 is: 4,893.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.45 : 11,912.54 = 3,260.70 : x
  2. Step 2: Convert to fraction form
    7,938.45/11,912.54 = 3,260.70/x
  3. Step 3: Cross multiply
    7,938.45x = 11,912.54 × 3,260.70
  4. Step 4: Simplify right side
    7,938.45x = 38,843,202.87
  5. Step 5: Solve for x
    x = 38,843,202.87/7,938.45
  6. Step 6: Final answer
    x = 4,893.05

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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.