Home / 11,520.96-17,270.40-4,940.64

Finding the Fourth Proportional to 11,520.96, 17,270.40 and 4,940.64

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Solution

The fourth proportional to 11,520.96, 17,270.40 and 4,940.64 is: 7,406.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.96 : 17,270.40 = 4,940.64 : x
  2. Step 2: Convert to fraction form
    11,520.96/17,270.40 = 4,940.64/x
  3. Step 3: Cross multiply
    11,520.96x = 17,270.40 × 4,940.64
  4. Step 4: Simplify right side
    11,520.96x = 85,326,829.06
  5. Step 5: Solve for x
    x = 85,326,829.06/11,520.96
  6. Step 6: Final answer
    x = 7,406.23

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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.