Home / 18,784.22-28,190.60-6,949.19

Finding the Fourth Proportional to 18,784.22, 28,190.60 and 6,949.19

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Solution

The fourth proportional to 18,784.22, 28,190.60 and 6,949.19 is: 10,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784.22 : 28,190.60 = 6,949.19 : x
  2. Step 2: Convert to fraction form
    18,784.22/28,190.60 = 6,949.19/x
  3. Step 3: Cross multiply
    18,784.22x = 28,190.60 × 6,949.19
  4. Step 4: Simplify right side
    18,784.22x = 195,901,835.61
  5. Step 5: Solve for x
    x = 195,901,835.61/18,784.22
  6. Step 6: Final answer
    x = 10,429.06

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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.