Home / 11,409.19-17,112.40-3,511.69

Finding the Fourth Proportional to 11,409.19, 17,112.40 and 3,511.69

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Solution

The fourth proportional to 11,409.19, 17,112.40 and 3,511.69 is: 5,267.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.19 : 17,112.40 = 3,511.69 : x
  2. Step 2: Convert to fraction form
    11,409.19/17,112.40 = 3,511.69/x
  3. Step 3: Cross multiply
    11,409.19x = 17,112.40 × 3,511.69
  4. Step 4: Simplify right side
    11,409.19x = 60,093,392.40
  5. Step 5: Solve for x
    x = 60,093,392.40/11,409.19
  6. Step 6: Final answer
    x = 5,267.11

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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.