Home / 18,815.09-28,222.83-5,667.57

Finding the Fourth Proportional to 18,815.09, 28,222.83 and 5,667.57

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Solution

The fourth proportional to 18,815.09, 28,222.83 and 5,667.57 is: 8,501.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.09 : 28,222.83 = 5,667.57 : x
  2. Step 2: Convert to fraction form
    18,815.09/28,222.83 = 5,667.57/x
  3. Step 3: Cross multiply
    18,815.09x = 28,222.83 × 5,667.57
  4. Step 4: Simplify right side
    18,815.09x = 159,954,864.62
  5. Step 5: Solve for x
    x = 159,954,864.62/18,815.09
  6. Step 6: Final answer
    x = 8,501.42

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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.