Home / 12,149.72-16,767.66-6,845.56

Finding the Fourth Proportional to 12,149.72, 16,767.66 and 6,845.56

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Solution

The fourth proportional to 12,149.72, 16,767.66 and 6,845.56 is: 9,447.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.72 : 16,767.66 = 6,845.56 : x
  2. Step 2: Convert to fraction form
    12,149.72/16,767.66 = 6,845.56/x
  3. Step 3: Cross multiply
    12,149.72x = 16,767.66 × 6,845.56
  4. Step 4: Simplify right side
    12,149.72x = 114,784,022.59
  5. Step 5: Solve for x
    x = 114,784,022.59/12,149.72
  6. Step 6: Final answer
    x = 9,447.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.