Home / 11,719.52-16,172.88-6,414.24

Finding the Fourth Proportional to 11,719.52, 16,172.88 and 6,414.24

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Solution

The fourth proportional to 11,719.52, 16,172.88 and 6,414.24 is: 8,851.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.52 : 16,172.88 = 6,414.24 : x
  2. Step 2: Convert to fraction form
    11,719.52/16,172.88 = 6,414.24/x
  3. Step 3: Cross multiply
    11,719.52x = 16,172.88 × 6,414.24
  4. Step 4: Simplify right side
    11,719.52x = 103,736,733.81
  5. Step 5: Solve for x
    x = 103,736,733.81/11,719.52
  6. Step 6: Final answer
    x = 8,851.62

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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.