Home / 12,220.24-18,331.39-3,901.44

Finding the Fourth Proportional to 12,220.24, 18,331.39 and 3,901.44

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Solution

The fourth proportional to 12,220.24, 18,331.39 and 3,901.44 is: 5,852.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.24 : 18,331.39 = 3,901.44 : x
  2. Step 2: Convert to fraction form
    12,220.24/18,331.39 = 3,901.44/x
  3. Step 3: Cross multiply
    12,220.24x = 18,331.39 × 3,901.44
  4. Step 4: Simplify right side
    12,220.24x = 71,518,818.20
  5. Step 5: Solve for x
    x = 71,518,818.20/12,220.24
  6. Step 6: Final answer
    x = 5,852.49

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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.