Home / 18,768.36-28,156.92-5,441.63

Finding the Fourth Proportional to 18,768.36, 28,156.92 and 5,441.63

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Solution

The fourth proportional to 18,768.36, 28,156.92 and 5,441.63 is: 8,163.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.36 : 28,156.92 = 5,441.63 : x
  2. Step 2: Convert to fraction form
    18,768.36/28,156.92 = 5,441.63/x
  3. Step 3: Cross multiply
    18,768.36x = 28,156.92 × 5,441.63
  4. Step 4: Simplify right side
    18,768.36x = 153,219,513.37
  5. Step 5: Solve for x
    x = 153,219,513.37/18,768.36
  6. Step 6: Final answer
    x = 8,163.71

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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.