Home / 12,481.74-17,224.80-7,177.60

Finding the Fourth Proportional to 12,481.74, 17,224.80 and 7,177.60

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Solution

The fourth proportional to 12,481.74, 17,224.80 and 7,177.60 is: 9,905.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.74 : 17,224.80 = 7,177.60 : x
  2. Step 2: Convert to fraction form
    12,481.74/17,224.80 = 7,177.60/x
  3. Step 3: Cross multiply
    12,481.74x = 17,224.80 × 7,177.60
  4. Step 4: Simplify right side
    12,481.74x = 123,632,724.48
  5. Step 5: Solve for x
    x = 123,632,724.48/12,481.74
  6. Step 6: Final answer
    x = 9,905.09

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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.