Home / 18,485.64-25,511.22-12,193.56

Finding the Fourth Proportional to 18,485.64, 25,511.22 and 12,193.56

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Solution

The fourth proportional to 18,485.64, 25,511.22 and 12,193.56 is: 16,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.64 : 25,511.22 = 12,193.56 : x
  2. Step 2: Convert to fraction form
    18,485.64/25,511.22 = 12,193.56/x
  3. Step 3: Cross multiply
    18,485.64x = 25,511.22 × 12,193.56
  4. Step 4: Simplify right side
    18,485.64x = 311,072,591.74
  5. Step 5: Solve for x
    x = 311,072,591.74/18,485.64
  6. Step 6: Final answer
    x = 16,827.80

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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.