Home / 19,146.38-28,719.36-7,467.80

Finding the Fourth Proportional to 19,146.38, 28,719.36 and 7,467.80

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Solution

The fourth proportional to 19,146.38, 28,719.36 and 7,467.80 is: 11,201.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.38 : 28,719.36 = 7,467.80 : x
  2. Step 2: Convert to fraction form
    19,146.38/28,719.36 = 7,467.80/x
  3. Step 3: Cross multiply
    19,146.38x = 28,719.36 × 7,467.80
  4. Step 4: Simplify right side
    19,146.38x = 214,470,293.01
  5. Step 5: Solve for x
    x = 214,470,293.01/19,146.38
  6. Step 6: Final answer
    x = 11,201.61

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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.