Home / 12,722.38-17,556.89-7,133.38

Finding the Fourth Proportional to 12,722.38, 17,556.89 and 7,133.38

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Solution

The fourth proportional to 12,722.38, 17,556.89 and 7,133.38 is: 9,844.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.38 : 17,556.89 = 7,133.38 : x
  2. Step 2: Convert to fraction form
    12,722.38/17,556.89 = 7,133.38/x
  3. Step 3: Cross multiply
    12,722.38x = 17,556.89 × 7,133.38
  4. Step 4: Simplify right side
    12,722.38x = 125,239,888.43
  5. Step 5: Solve for x
    x = 125,239,888.43/12,722.38
  6. Step 6: Final answer
    x = 9,844.06

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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.