Home / 11,583.82-15,983.58-6,479.44

Finding the Fourth Proportional to 11,583.82, 15,983.58 and 6,479.44

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Solution

The fourth proportional to 11,583.82, 15,983.58 and 6,479.44 is: 8,940.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,583.82 : 15,983.58 = 6,479.44 : x
  2. Step 2: Convert to fraction form
    11,583.82/15,983.58 = 6,479.44/x
  3. Step 3: Cross multiply
    11,583.82x = 15,983.58 × 6,479.44
  4. Step 4: Simplify right side
    11,583.82x = 103,564,647.60
  5. Step 5: Solve for x
    x = 103,564,647.60/11,583.82
  6. Step 6: Final answer
    x = 8,940.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.