Home / 11,362.78-17,025.36-6,921.64

Finding the Fourth Proportional to 11,362.78, 17,025.36 and 6,921.64

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Solution

The fourth proportional to 11,362.78, 17,025.36 and 6,921.64 is: 10,371.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,362.78 : 17,025.36 = 6,921.64 : x
  2. Step 2: Convert to fraction form
    11,362.78/17,025.36 = 6,921.64/x
  3. Step 3: Cross multiply
    11,362.78x = 17,025.36 × 6,921.64
  4. Step 4: Simplify right side
    11,362.78x = 117,843,412.79
  5. Step 5: Solve for x
    x = 117,843,412.79/11,362.78
  6. Step 6: Final answer
    x = 10,371.00

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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.