Home / 11,621.25-17,424.72-6,940.35

Finding the Fourth Proportional to 11,621.25, 17,424.72 and 6,940.35

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Solution

The fourth proportional to 11,621.25, 17,424.72 and 6,940.35 is: 10,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.25 : 17,424.72 = 6,940.35 : x
  2. Step 2: Convert to fraction form
    11,621.25/17,424.72 = 6,940.35/x
  3. Step 3: Cross multiply
    11,621.25x = 17,424.72 × 6,940.35
  4. Step 4: Simplify right side
    11,621.25x = 120,933,655.45
  5. Step 5: Solve for x
    x = 120,933,655.45/11,621.25
  6. Step 6: Final answer
    x = 10,406.25

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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.