Home / 19,489.11-26,909.35-11,945.73

Finding the Fourth Proportional to 19,489.11, 26,909.35 and 11,945.73

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Solution

The fourth proportional to 19,489.11, 26,909.35 and 11,945.73 is: 16,493.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,489.11 : 26,909.35 = 11,945.73 : x
  2. Step 2: Convert to fraction form
    19,489.11/26,909.35 = 11,945.73/x
  3. Step 3: Cross multiply
    19,489.11x = 26,909.35 × 11,945.73
  4. Step 4: Simplify right side
    19,489.11x = 321,451,829.58
  5. Step 5: Solve for x
    x = 321,451,829.58/19,489.11
  6. Step 6: Final answer
    x = 16,493.92

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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.