Home / 7,948.50-11,912.70-6,958.89

Finding the Fourth Proportional to 7,948.50, 11,912.70 and 6,958.89

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Solution

The fourth proportional to 7,948.50, 11,912.70 and 6,958.89 is: 10,429.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.50 : 11,912.70 = 6,958.89 : x
  2. Step 2: Convert to fraction form
    7,948.50/11,912.70 = 6,958.89/x
  3. Step 3: Cross multiply
    7,948.50x = 11,912.70 × 6,958.89
  4. Step 4: Simplify right side
    7,948.50x = 82,899,168.90
  5. Step 5: Solve for x
    x = 82,899,168.90/7,948.50
  6. Step 6: Final answer
    x = 10,429.54

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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.