Home / 18,816.87-28,220.04-5,667.33

Finding the Fourth Proportional to 18,816.87, 28,220.04 and 5,667.33

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Solution

The fourth proportional to 18,816.87, 28,220.04 and 5,667.33 is: 8,499.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.87 : 28,220.04 = 5,667.33 : x
  2. Step 2: Convert to fraction form
    18,816.87/28,220.04 = 5,667.33/x
  3. Step 3: Cross multiply
    18,816.87x = 28,220.04 × 5,667.33
  4. Step 4: Simplify right side
    18,816.87x = 159,932,250.96
  5. Step 5: Solve for x
    x = 159,932,250.96/18,816.87
  6. Step 6: Final answer
    x = 8,499.41

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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.