Home / 13,946.76-20,906.94-5,175.72

Finding the Fourth Proportional to 13,946.76, 20,906.94 and 5,175.72

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Solution

The fourth proportional to 13,946.76, 20,906.94 and 5,175.72 is: 7,758.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.76 : 20,906.94 = 5,175.72 : x
  2. Step 2: Convert to fraction form
    13,946.76/20,906.94 = 5,175.72/x
  3. Step 3: Cross multiply
    13,946.76x = 20,906.94 × 5,175.72
  4. Step 4: Simplify right side
    13,946.76x = 108,208,467.50
  5. Step 5: Solve for x
    x = 108,208,467.50/13,946.76
  6. Step 6: Final answer
    x = 7,758.68

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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.