Home / 12,811.92-19,216.29-3,452.67

Finding the Fourth Proportional to 12,811.92, 19,216.29 and 3,452.67

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Solution

The fourth proportional to 12,811.92, 19,216.29 and 3,452.67 is: 5,178.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.92 : 19,216.29 = 3,452.67 : x
  2. Step 2: Convert to fraction form
    12,811.92/19,216.29 = 3,452.67/x
  3. Step 3: Cross multiply
    12,811.92x = 19,216.29 × 3,452.67
  4. Step 4: Simplify right side
    12,811.92x = 66,347,507.99
  5. Step 5: Solve for x
    x = 66,347,507.99/12,811.92
  6. Step 6: Final answer
    x = 5,178.58

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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.