Home / 11,409.09-15,742.99-6,372.67

Finding the Fourth Proportional to 11,409.09, 15,742.99 and 6,372.67

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Solution

The fourth proportional to 11,409.09, 15,742.99 and 6,372.67 is: 8,793.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.09 : 15,742.99 = 6,372.67 : x
  2. Step 2: Convert to fraction form
    11,409.09/15,742.99 = 6,372.67/x
  3. Step 3: Cross multiply
    11,409.09x = 15,742.99 × 6,372.67
  4. Step 4: Simplify right side
    11,409.09x = 100,324,880.08
  5. Step 5: Solve for x
    x = 100,324,880.08/11,409.09
  6. Step 6: Final answer
    x = 8,793.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.