Home / 19,180.37-28,768.26-5,141.45

Finding the Fourth Proportional to 19,180.37, 28,768.26 and 5,141.45

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Solution

The fourth proportional to 19,180.37, 28,768.26 and 5,141.45 is: 7,711.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.37 : 28,768.26 = 5,141.45 : x
  2. Step 2: Convert to fraction form
    19,180.37/28,768.26 = 5,141.45/x
  3. Step 3: Cross multiply
    19,180.37x = 28,768.26 × 5,141.45
  4. Step 4: Simplify right side
    19,180.37x = 147,910,570.38
  5. Step 5: Solve for x
    x = 147,910,570.38/19,180.37
  6. Step 6: Final answer
    x = 7,711.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.