Home / 11,042.96-15,240.36-8,243.60

Finding the Fourth Proportional to 11,042.96, 15,240.36 and 8,243.60

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Solution

The fourth proportional to 11,042.96, 15,240.36 and 8,243.60 is: 11,376.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,042.96 : 15,240.36 = 8,243.60 : x
  2. Step 2: Convert to fraction form
    11,042.96/15,240.36 = 8,243.60/x
  3. Step 3: Cross multiply
    11,042.96x = 15,240.36 × 8,243.60
  4. Step 4: Simplify right side
    11,042.96x = 125,635,431.70
  5. Step 5: Solve for x
    x = 125,635,431.70/11,042.96
  6. Step 6: Final answer
    x = 11,376.97

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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.