Home / 12,722.12-17,556.66-7,133

Finding the Fourth Proportional to 12,722.12, 17,556.66 and 7,133

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Solution

The fourth proportional to 12,722.12, 17,556.66 and 7,133 is: 9,843.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.12 : 17,556.66 = 7,133 : x
  2. Step 2: Convert to fraction form
    12,722.12/17,556.66 = 7,133/x
  3. Step 3: Cross multiply
    12,722.12x = 17,556.66 × 7,133
  4. Step 4: Simplify right side
    12,722.12x = 125,231,655.78
  5. Step 5: Solve for x
    x = 125,231,655.78/12,722.12
  6. Step 6: Final answer
    x = 9,843.62

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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.