Home / 11,719.45-16,172.62-6,414.13

Finding the Fourth Proportional to 11,719.45, 16,172.62 and 6,414.13

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Solution

The fourth proportional to 11,719.45, 16,172.62 and 6,414.13 is: 8,851.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.45 : 16,172.62 = 6,414.13 : x
  2. Step 2: Convert to fraction form
    11,719.45/16,172.62 = 6,414.13/x
  3. Step 3: Cross multiply
    11,719.45x = 16,172.62 × 6,414.13
  4. Step 4: Simplify right side
    11,719.45x = 103,733,287.12
  5. Step 5: Solve for x
    x = 103,733,287.12/11,719.45
  6. Step 6: Final answer
    x = 8,851.38

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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.