Home / 12,191.97-16,824.71-6,814.54

Finding the Fourth Proportional to 12,191.97, 16,824.71 and 6,814.54

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Solution

The fourth proportional to 12,191.97, 16,824.71 and 6,814.54 is: 9,403.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.97 : 16,824.71 = 6,814.54 : x
  2. Step 2: Convert to fraction form
    12,191.97/16,824.71 = 6,814.54/x
  3. Step 3: Cross multiply
    12,191.97x = 16,824.71 × 6,814.54
  4. Step 4: Simplify right side
    12,191.97x = 114,652,634.26
  5. Step 5: Solve for x
    x = 114,652,634.26/12,191.97
  6. Step 6: Final answer
    x = 9,403.95

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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.