Home / 18,784.57-28,191.14-6,949.54

Finding the Fourth Proportional to 18,784.57, 28,191.14 and 6,949.54

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Solution

The fourth proportional to 18,784.57, 28,191.14 and 6,949.54 is: 10,429.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784.57 : 28,191.14 = 6,949.54 : x
  2. Step 2: Convert to fraction form
    18,784.57/28,191.14 = 6,949.54/x
  3. Step 3: Cross multiply
    18,784.57x = 28,191.14 × 6,949.54
  4. Step 4: Simplify right side
    18,784.57x = 195,915,455.08
  5. Step 5: Solve for x
    x = 195,915,455.08/18,784.57
  6. Step 6: Final answer
    x = 10,429.59

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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.