Home / 7,756.19-11,634.21-1,912.80

Finding the Fourth Proportional to 7,756.19, 11,634.21 and 1,912.80

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Solution

The fourth proportional to 7,756.19, 11,634.21 and 1,912.80 is: 2,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,756.19 : 11,634.21 = 1,912.80 : x
  2. Step 2: Convert to fraction form
    7,756.19/11,634.21 = 1,912.80/x
  3. Step 3: Cross multiply
    7,756.19x = 11,634.21 × 1,912.80
  4. Step 4: Simplify right side
    7,756.19x = 22,253,916.89
  5. Step 5: Solve for x
    x = 22,253,916.89/7,756.19
  6. Step 6: Final answer
    x = 2,869.18

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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.