Home / 11,511.32-17,270.60-4,115.60

Finding the Fourth Proportional to 11,511.32, 17,270.60 and 4,115.60

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Solution

The fourth proportional to 11,511.32, 17,270.60 and 4,115.60 is: 6,174.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.32 : 17,270.60 = 4,115.60 : x
  2. Step 2: Convert to fraction form
    11,511.32/17,270.60 = 4,115.60/x
  3. Step 3: Cross multiply
    11,511.32x = 17,270.60 × 4,115.60
  4. Step 4: Simplify right side
    11,511.32x = 71,078,881.36
  5. Step 5: Solve for x
    x = 71,078,881.36/11,511.32
  6. Step 6: Final answer
    x = 6,174.69

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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.