Home / 11,825.39-16,318.82-6,447.88

Finding the Fourth Proportional to 11,825.39, 16,318.82 and 6,447.88

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Solution

The fourth proportional to 11,825.39, 16,318.82 and 6,447.88 is: 8,897.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,825.39 : 16,318.82 = 6,447.88 : x
  2. Step 2: Convert to fraction form
    11,825.39/16,318.82 = 6,447.88/x
  3. Step 3: Cross multiply
    11,825.39x = 16,318.82 × 6,447.88
  4. Step 4: Simplify right side
    11,825.39x = 105,221,747.45
  5. Step 5: Solve for x
    x = 105,221,747.45/11,825.39
  6. Step 6: Final answer
    x = 8,897.95

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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.