Home / 12,721.44-17,556.66-7,057.96

Finding the Fourth Proportional to 12,721.44, 17,556.66 and 7,057.96

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Solution

The fourth proportional to 12,721.44, 17,556.66 and 7,057.96 is: 9,740.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.44 : 17,556.66 = 7,057.96 : x
  2. Step 2: Convert to fraction form
    12,721.44/17,556.66 = 7,057.96/x
  3. Step 3: Cross multiply
    12,721.44x = 17,556.66 × 7,057.96
  4. Step 4: Simplify right side
    12,721.44x = 123,914,204.01
  5. Step 5: Solve for x
    x = 123,914,204.01/12,721.44
  6. Step 6: Final answer
    x = 9,740.58

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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.