Home / 12,133.72-18,200.68-3,369.32

Finding the Fourth Proportional to 12,133.72, 18,200.68 and 3,369.32

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Solution

The fourth proportional to 12,133.72, 18,200.68 and 3,369.32 is: 5,054.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.72 : 18,200.68 = 3,369.32 : x
  2. Step 2: Convert to fraction form
    12,133.72/18,200.68 = 3,369.32/x
  3. Step 3: Cross multiply
    12,133.72x = 18,200.68 × 3,369.32
  4. Step 4: Simplify right side
    12,133.72x = 61,323,915.14
  5. Step 5: Solve for x
    x = 61,323,915.14/12,133.72
  6. Step 6: Final answer
    x = 5,054.01

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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.