Home / 11,113.20-16,668.72-6,729.48

Finding the Fourth Proportional to 11,113.20, 16,668.72 and 6,729.48

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Solution

The fourth proportional to 11,113.20, 16,668.72 and 6,729.48 is: 10,093.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.20 : 16,668.72 = 6,729.48 : x
  2. Step 2: Convert to fraction form
    11,113.20/16,668.72 = 6,729.48/x
  3. Step 3: Cross multiply
    11,113.20x = 16,668.72 × 6,729.48
  4. Step 4: Simplify right side
    11,113.20x = 112,171,817.87
  5. Step 5: Solve for x
    x = 112,171,817.87/11,113.20
  6. Step 6: Final answer
    x = 10,093.57

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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.