Home / 18,934.50-28,405.41-8,546.25

Finding the Fourth Proportional to 18,934.50, 28,405.41 and 8,546.25

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Solution

The fourth proportional to 18,934.50, 28,405.41 and 8,546.25 is: 12,821.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.50 : 28,405.41 = 8,546.25 : x
  2. Step 2: Convert to fraction form
    18,934.50/28,405.41 = 8,546.25/x
  3. Step 3: Cross multiply
    18,934.50x = 28,405.41 × 8,546.25
  4. Step 4: Simplify right side
    18,934.50x = 242,759,735.21
  5. Step 5: Solve for x
    x = 242,759,735.21/18,934.50
  6. Step 6: Final answer
    x = 12,821.03

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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.