Home / 19,219.40-28,813.10-8,134.60

Finding the Fourth Proportional to 19,219.40, 28,813.10 and 8,134.60

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Solution

The fourth proportional to 19,219.40, 28,813.10 and 8,134.60 is: 12,195.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219.40 : 28,813.10 = 8,134.60 : x
  2. Step 2: Convert to fraction form
    19,219.40/28,813.10 = 8,134.60/x
  3. Step 3: Cross multiply
    19,219.40x = 28,813.10 × 8,134.60
  4. Step 4: Simplify right side
    19,219.40x = 234,383,043.26
  5. Step 5: Solve for x
    x = 234,383,043.26/19,219.40
  6. Step 6: Final answer
    x = 12,195.13

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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.