Home / 12,481.60-18,725.28-3,717.12

Finding the Fourth Proportional to 12,481.60, 18,725.28 and 3,717.12

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Solution

The fourth proportional to 12,481.60, 18,725.28 and 3,717.12 is: 5,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.60 : 18,725.28 = 3,717.12 : x
  2. Step 2: Convert to fraction form
    12,481.60/18,725.28 = 3,717.12/x
  3. Step 3: Cross multiply
    12,481.60x = 18,725.28 × 3,717.12
  4. Step 4: Simplify right side
    12,481.60x = 69,604,112.79
  5. Step 5: Solve for x
    x = 69,604,112.79/12,481.60
  6. Step 6: Final answer
    x = 5,576.54

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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.