Home / 12,511.87-17,174.40-11,063.82

Finding the Fourth Proportional to 12,511.87, 17,174.40 and 11,063.82

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Solution

The fourth proportional to 12,511.87, 17,174.40 and 11,063.82 is: 15,186.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.87 : 17,174.40 = 11,063.82 : x
  2. Step 2: Convert to fraction form
    12,511.87/17,174.40 = 11,063.82/x
  3. Step 3: Cross multiply
    12,511.87x = 17,174.40 × 11,063.82
  4. Step 4: Simplify right side
    12,511.87x = 190,014,493.12
  5. Step 5: Solve for x
    x = 190,014,493.12/12,511.87
  6. Step 6: Final answer
    x = 15,186.74

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.