Home / 10,918.72-16,382.96-5,723.38

Finding the Fourth Proportional to 10,918.72, 16,382.96 and 5,723.38

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Solution

The fourth proportional to 10,918.72, 16,382.96 and 5,723.38 is: 8,587.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.72 : 16,382.96 = 5,723.38 : x
  2. Step 2: Convert to fraction form
    10,918.72/16,382.96 = 5,723.38/x
  3. Step 3: Cross multiply
    10,918.72x = 16,382.96 × 5,723.38
  4. Step 4: Simplify right side
    10,918.72x = 93,765,795.07
  5. Step 5: Solve for x
    x = 93,765,795.07/10,918.72
  6. Step 6: Final answer
    x = 8,587.62

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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.