Home / 11,743.56-16,206.39-6,438.67

Finding the Fourth Proportional to 11,743.56, 16,206.39 and 6,438.67

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Solution

The fourth proportional to 11,743.56, 16,206.39 and 6,438.67 is: 8,885.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,743.56 : 16,206.39 = 6,438.67 : x
  2. Step 2: Convert to fraction form
    11,743.56/16,206.39 = 6,438.67/x
  3. Step 3: Cross multiply
    11,743.56x = 16,206.39 × 6,438.67
  4. Step 4: Simplify right side
    11,743.56x = 104,347,556.59
  5. Step 5: Solve for x
    x = 104,347,556.59/11,743.56
  6. Step 6: Final answer
    x = 8,885.51

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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.