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Finding the Fourth Proportional to 12,676.17, 19,014.39 and 3,911.16

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Solution

The fourth proportional to 12,676.17, 19,014.39 and 3,911.16 is: 5,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,676.17 : 19,014.39 = 3,911.16 : x
  2. Step 2: Convert to fraction form
    12,676.17/19,014.39 = 3,911.16/x
  3. Step 3: Cross multiply
    12,676.17x = 19,014.39 × 3,911.16
  4. Step 4: Simplify right side
    12,676.17x = 74,368,321.59
  5. Step 5: Solve for x
    x = 74,368,321.59/12,676.17
  6. Step 6: Final answer
    x = 5,866.78

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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.