Home / 12,982.62-17,917.73-7,318.60

Finding the Fourth Proportional to 12,982.62, 17,917.73 and 7,318.60

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Solution

The fourth proportional to 12,982.62, 17,917.73 and 7,318.60 is: 10,100.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.62 : 17,917.73 = 7,318.60 : x
  2. Step 2: Convert to fraction form
    12,982.62/17,917.73 = 7,318.60/x
  3. Step 3: Cross multiply
    12,982.62x = 17,917.73 × 7,318.60
  4. Step 4: Simplify right side
    12,982.62x = 131,132,672.28
  5. Step 5: Solve for x
    x = 131,132,672.28/12,982.62
  6. Step 6: Final answer
    x = 10,100.63

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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.