Home / 18,933.54-28,403.76-7,834.20

Finding the Fourth Proportional to 18,933.54, 28,403.76 and 7,834.20

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Solution

The fourth proportional to 18,933.54, 28,403.76 and 7,834.20 is: 11,752.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.54 : 28,403.76 = 7,834.20 : x
  2. Step 2: Convert to fraction form
    18,933.54/28,403.76 = 7,834.20/x
  3. Step 3: Cross multiply
    18,933.54x = 28,403.76 × 7,834.20
  4. Step 4: Simplify right side
    18,933.54x = 222,520,736.59
  5. Step 5: Solve for x
    x = 222,520,736.59/18,933.54
  6. Step 6: Final answer
    x = 11,752.73

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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.