Home / 18,911.28-26,093.96-12,195.60

Finding the Fourth Proportional to 18,911.28, 26,093.96 and 12,195.60

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Solution

The fourth proportional to 18,911.28, 26,093.96 and 12,195.60 is: 16,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911.28 : 26,093.96 = 12,195.60 : x
  2. Step 2: Convert to fraction form
    18,911.28/26,093.96 = 12,195.60/x
  3. Step 3: Cross multiply
    18,911.28x = 26,093.96 × 12,195.60
  4. Step 4: Simplify right side
    18,911.28x = 318,231,498.58
  5. Step 5: Solve for x
    x = 318,231,498.58/18,911.28
  6. Step 6: Final answer
    x = 16,827.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.