Home / 10,769.64-16,154.48-2,978.47

Finding the Fourth Proportional to 10,769.64, 16,154.48 and 2,978.47

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Solution

The fourth proportional to 10,769.64, 16,154.48 and 2,978.47 is: 4,467.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,769.64 : 16,154.48 = 2,978.47 : x
  2. Step 2: Convert to fraction form
    10,769.64/16,154.48 = 2,978.47/x
  3. Step 3: Cross multiply
    10,769.64x = 16,154.48 × 2,978.47
  4. Step 4: Simplify right side
    10,769.64x = 48,115,634.05
  5. Step 5: Solve for x
    x = 48,115,634.05/10,769.64
  6. Step 6: Final answer
    x = 4,467.71

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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.