Home / 11,511.20-17,266.78-4,933.12

Finding the Fourth Proportional to 11,511.20, 17,266.78 and 4,933.12

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Solution

The fourth proportional to 11,511.20, 17,266.78 and 4,933.12 is: 7,399.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.20 : 17,266.78 = 4,933.12 : x
  2. Step 2: Convert to fraction form
    11,511.20/17,266.78 = 4,933.12/x
  3. Step 3: Cross multiply
    11,511.20x = 17,266.78 × 4,933.12
  4. Step 4: Simplify right side
    11,511.20x = 85,179,097.75
  5. Step 5: Solve for x
    x = 85,179,097.75/11,511.20
  6. Step 6: Final answer
    x = 7,399.67

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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.