Home / 18,676.32-28,015.20-4,825.68

Finding the Fourth Proportional to 18,676.32, 28,015.20 and 4,825.68

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Solution

The fourth proportional to 18,676.32, 28,015.20 and 4,825.68 is: 7,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.32 : 28,015.20 = 4,825.68 : x
  2. Step 2: Convert to fraction form
    18,676.32/28,015.20 = 4,825.68/x
  3. Step 3: Cross multiply
    18,676.32x = 28,015.20 × 4,825.68
  4. Step 4: Simplify right side
    18,676.32x = 135,192,390.34
  5. Step 5: Solve for x
    x = 135,192,390.34/18,676.32
  6. Step 6: Final answer
    x = 7,238.71

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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.