Home / 6,916.91-10,375.23-1,986.44

Finding the Fourth Proportional to 6,916.91, 10,375.23 and 1,986.44

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Solution

The fourth proportional to 6,916.91, 10,375.23 and 1,986.44 is: 2,979.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.91 : 10,375.23 = 1,986.44 : x
  2. Step 2: Convert to fraction form
    6,916.91/10,375.23 = 1,986.44/x
  3. Step 3: Cross multiply
    6,916.91x = 10,375.23 × 1,986.44
  4. Step 4: Simplify right side
    6,916.91x = 20,609,771.88
  5. Step 5: Solve for x
    x = 20,609,771.88/6,916.91
  6. Step 6: Final answer
    x = 2,979.62

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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.