Home / 11,719.23-16,172.63-6,414.09

Finding the Fourth Proportional to 11,719.23, 16,172.63 and 6,414.09

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Solution

The fourth proportional to 11,719.23, 16,172.63 and 6,414.09 is: 8,851.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.23 : 16,172.63 = 6,414.09 : x
  2. Step 2: Convert to fraction form
    11,719.23/16,172.63 = 6,414.09/x
  3. Step 3: Cross multiply
    11,719.23x = 16,172.63 × 6,414.09
  4. Step 4: Simplify right side
    11,719.23x = 103,732,704.36
  5. Step 5: Solve for x
    x = 103,732,704.36/11,719.23
  6. Step 6: Final answer
    x = 8,851.49

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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.