Home / 12,168.96-16,789.05-9,926.97

Finding the Fourth Proportional to 12,168.96, 16,789.05 and 9,926.97

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Solution

The fourth proportional to 12,168.96, 16,789.05 and 9,926.97 is: 13,695.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.96 : 16,789.05 = 9,926.97 : x
  2. Step 2: Convert to fraction form
    12,168.96/16,789.05 = 9,926.97/x
  3. Step 3: Cross multiply
    12,168.96x = 16,789.05 × 9,926.97
  4. Step 4: Simplify right side
    12,168.96x = 166,664,395.68
  5. Step 5: Solve for x
    x = 166,664,395.68/12,168.96
  6. Step 6: Final answer
    x = 13,695.86

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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.