Home / 11,621.80-17,415.42-7,670.44

Finding the Fourth Proportional to 11,621.80, 17,415.42 and 7,670.44

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Solution

The fourth proportional to 11,621.80, 17,415.42 and 7,670.44 is: 11,494.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.80 : 17,415.42 = 7,670.44 : x
  2. Step 2: Convert to fraction form
    11,621.80/17,415.42 = 7,670.44/x
  3. Step 3: Cross multiply
    11,621.80x = 17,415.42 × 7,670.44
  4. Step 4: Simplify right side
    11,621.80x = 133,583,934.18
  5. Step 5: Solve for x
    x = 133,583,934.18/11,621.80
  6. Step 6: Final answer
    x = 11,494.26

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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.