Home / 7,912.16-11,868.25-2,982.91

Finding the Fourth Proportional to 7,912.16, 11,868.25 and 2,982.91

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Solution

The fourth proportional to 7,912.16, 11,868.25 and 2,982.91 is: 4,474.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.16 : 11,868.25 = 2,982.91 : x
  2. Step 2: Convert to fraction form
    7,912.16/11,868.25 = 2,982.91/x
  3. Step 3: Cross multiply
    7,912.16x = 11,868.25 × 2,982.91
  4. Step 4: Simplify right side
    7,912.16x = 35,401,884.48
  5. Step 5: Solve for x
    x = 35,401,884.48/7,912.16
  6. Step 6: Final answer
    x = 4,474.36

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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.