Home / 11,215.92-16,825.68-3,424.08

Finding the Fourth Proportional to 11,215.92, 16,825.68 and 3,424.08

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Solution

The fourth proportional to 11,215.92, 16,825.68 and 3,424.08 is: 5,136.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.92 : 16,825.68 = 3,424.08 : x
  2. Step 2: Convert to fraction form
    11,215.92/16,825.68 = 3,424.08/x
  3. Step 3: Cross multiply
    11,215.92x = 16,825.68 × 3,424.08
  4. Step 4: Simplify right side
    11,215.92x = 57,612,474.37
  5. Step 5: Solve for x
    x = 57,612,474.37/11,215.92
  6. Step 6: Final answer
    x = 5,136.67

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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.