Home / 11,511.15-17,270.37-4,115.45

Finding the Fourth Proportional to 11,511.15, 17,270.37 and 4,115.45

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Solution

The fourth proportional to 11,511.15, 17,270.37 and 4,115.45 is: 6,174.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.15 : 17,270.37 = 4,115.45 : x
  2. Step 2: Convert to fraction form
    11,511.15/17,270.37 = 4,115.45/x
  3. Step 3: Cross multiply
    11,511.15x = 17,270.37 × 4,115.45
  4. Step 4: Simplify right side
    11,511.15x = 71,075,257.86
  5. Step 5: Solve for x
    x = 71,075,257.86/11,511.15
  6. Step 6: Final answer
    x = 6,174.47

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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.