Home / 13,576.44-18,744.60-8,479.70

Finding the Fourth Proportional to 13,576.44, 18,744.60 and 8,479.70

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Solution

The fourth proportional to 13,576.44, 18,744.60 and 8,479.70 is: 11,707.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.44 : 18,744.60 = 8,479.70 : x
  2. Step 2: Convert to fraction form
    13,576.44/18,744.60 = 8,479.70/x
  3. Step 3: Cross multiply
    13,576.44x = 18,744.60 × 8,479.70
  4. Step 4: Simplify right side
    13,576.44x = 158,948,584.62
  5. Step 5: Solve for x
    x = 158,948,584.62/13,576.44
  6. Step 6: Final answer
    x = 11,707.68

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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.