Home / 11,308.78-16,989.68-10,669.73

Finding the Fourth Proportional to 11,308.78, 16,989.68 and 10,669.73

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Solution

The fourth proportional to 11,308.78, 16,989.68 and 10,669.73 is: 16,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,308.78 : 16,989.68 = 10,669.73 : x
  2. Step 2: Convert to fraction form
    11,308.78/16,989.68 = 10,669.73/x
  3. Step 3: Cross multiply
    11,308.78x = 16,989.68 × 10,669.73
  4. Step 4: Simplify right side
    11,308.78x = 181,275,245.04
  5. Step 5: Solve for x
    x = 181,275,245.04/11,308.78
  6. Step 6: Final answer
    x = 16,029.60

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1.5x scale

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.