Home / 11,136.72-16,709.38-4,211.76

Finding the Fourth Proportional to 11,136.72, 16,709.38 and 4,211.76

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Solution

The fourth proportional to 11,136.72, 16,709.38 and 4,211.76 is: 6,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.72 : 16,709.38 = 4,211.76 : x
  2. Step 2: Convert to fraction form
    11,136.72/16,709.38 = 4,211.76/x
  3. Step 3: Cross multiply
    11,136.72x = 16,709.38 × 4,211.76
  4. Step 4: Simplify right side
    11,136.72x = 70,375,898.31
  5. Step 5: Solve for x
    x = 70,375,898.31/11,136.72
  6. Step 6: Final answer
    x = 6,319.27

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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.