Home / 11,455.11-17,185.32-3,557.21

Finding the Fourth Proportional to 11,455.11, 17,185.32 and 3,557.21

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Solution

The fourth proportional to 11,455.11, 17,185.32 and 3,557.21 is: 5,336.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.11 : 17,185.32 = 3,557.21 : x
  2. Step 2: Convert to fraction form
    11,455.11/17,185.32 = 3,557.21/x
  3. Step 3: Cross multiply
    11,455.11x = 17,185.32 × 3,557.21
  4. Step 4: Simplify right side
    11,455.11x = 61,131,706.23
  5. Step 5: Solve for x
    x = 61,131,706.23/11,455.11
  6. Step 6: Final answer
    x = 5,336.63

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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.