Home / 12,721.73-17,556.03-7,056.54

Finding the Fourth Proportional to 12,721.73, 17,556.03 and 7,056.54

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Solution

The fourth proportional to 12,721.73, 17,556.03 and 7,056.54 is: 9,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.73 : 17,556.03 = 7,056.54 : x
  2. Step 2: Convert to fraction form
    12,721.73/17,556.03 = 7,056.54/x
  3. Step 3: Cross multiply
    12,721.73x = 17,556.03 × 7,056.54
  4. Step 4: Simplify right side
    12,721.73x = 123,884,827.94
  5. Step 5: Solve for x
    x = 123,884,827.94/12,721.73
  6. Step 6: Final answer
    x = 9,738.05

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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.