Home / 19,907.27-27,472.13-10,954.55

Finding the Fourth Proportional to 19,907.27, 27,472.13 and 10,954.55

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Solution

The fourth proportional to 19,907.27, 27,472.13 and 10,954.55 is: 15,117.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.27 : 27,472.13 = 10,954.55 : x
  2. Step 2: Convert to fraction form
    19,907.27/27,472.13 = 10,954.55/x
  3. Step 3: Cross multiply
    19,907.27x = 27,472.13 × 10,954.55
  4. Step 4: Simplify right side
    19,907.27x = 300,944,629.56
  5. Step 5: Solve for x
    x = 300,944,629.56/19,907.27
  6. Step 6: Final answer
    x = 15,117.33

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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.