Home / 10,769.52-16,155.08-2,978.26

Finding the Fourth Proportional to 10,769.52, 16,155.08 and 2,978.26

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Solution

The fourth proportional to 10,769.52, 16,155.08 and 2,978.26 is: 4,467.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,769.52 : 16,155.08 = 2,978.26 : x
  2. Step 2: Convert to fraction form
    10,769.52/16,155.08 = 2,978.26/x
  3. Step 3: Cross multiply
    10,769.52x = 16,155.08 × 2,978.26
  4. Step 4: Simplify right side
    10,769.52x = 48,114,028.56
  5. Step 5: Solve for x
    x = 48,114,028.56/10,769.52
  6. Step 6: Final answer
    x = 4,467.61

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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.