Home / 10,921.38-16,382.06-2,713.38

Finding the Fourth Proportional to 10,921.38, 16,382.06 and 2,713.38

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Solution

The fourth proportional to 10,921.38, 16,382.06 and 2,713.38 is: 4,070.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.38 : 16,382.06 = 2,713.38 : x
  2. Step 2: Convert to fraction form
    10,921.38/16,382.06 = 2,713.38/x
  3. Step 3: Cross multiply
    10,921.38x = 16,382.06 × 2,713.38
  4. Step 4: Simplify right side
    10,921.38x = 44,450,753.96
  5. Step 5: Solve for x
    x = 44,450,753.96/10,921.38
  6. Step 6: Final answer
    x = 4,070.07

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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.