Home / 19,380.80-26,745.28-10,997.60

Finding the Fourth Proportional to 19,380.80, 26,745.28 and 10,997.60

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Solution

The fourth proportional to 19,380.80, 26,745.28 and 10,997.60 is: 15,176.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,380.80 : 26,745.28 = 10,997.60 : x
  2. Step 2: Convert to fraction form
    19,380.80/26,745.28 = 10,997.60/x
  3. Step 3: Cross multiply
    19,380.80x = 26,745.28 × 10,997.60
  4. Step 4: Simplify right side
    19,380.80x = 294,133,891.33
  5. Step 5: Solve for x
    x = 294,133,891.33/19,380.80
  6. Step 6: Final answer
    x = 15,176.56

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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.