Home / 12,874.10-17,757.09-11,815.28

Finding the Fourth Proportional to 12,874.10, 17,757.09 and 11,815.28

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Solution

The fourth proportional to 12,874.10, 17,757.09 and 11,815.28 is: 16,296.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,874.10 : 17,757.09 = 11,815.28 : x
  2. Step 2: Convert to fraction form
    12,874.10/17,757.09 = 11,815.28/x
  3. Step 3: Cross multiply
    12,874.10x = 17,757.09 × 11,815.28
  4. Step 4: Simplify right side
    12,874.10x = 209,804,990.34
  5. Step 5: Solve for x
    x = 209,804,990.34/12,874.10
  6. Step 6: Final answer
    x = 16,296.67

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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.