Home / 7,942.90-11,916.42-3,012.64

Finding the Fourth Proportional to 7,942.90, 11,916.42 and 3,012.64

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Solution

The fourth proportional to 7,942.90, 11,916.42 and 3,012.64 is: 4,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.90 : 11,916.42 = 3,012.64 : x
  2. Step 2: Convert to fraction form
    7,942.90/11,916.42 = 3,012.64/x
  3. Step 3: Cross multiply
    7,942.90x = 11,916.42 × 3,012.64
  4. Step 4: Simplify right side
    7,942.90x = 35,899,883.55
  5. Step 5: Solve for x
    x = 35,899,883.55/7,942.90
  6. Step 6: Final answer
    x = 4,519.75

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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.