Home / 13,650.49-20,466.69-5,331.30

Finding the Fourth Proportional to 13,650.49, 20,466.69 and 5,331.30

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Solution

The fourth proportional to 13,650.49, 20,466.69 and 5,331.30 is: 7,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.49 : 20,466.69 = 5,331.30 : x
  2. Step 2: Convert to fraction form
    13,650.49/20,466.69 = 5,331.30/x
  3. Step 3: Cross multiply
    13,650.49x = 20,466.69 × 5,331.30
  4. Step 4: Simplify right side
    13,650.49x = 109,114,064.40
  5. Step 5: Solve for x
    x = 109,114,064.40/13,650.49
  6. Step 6: Final answer
    x = 7,993.42

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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.