Home / 12,716.63-19,077.66-3,951.21

Finding the Fourth Proportional to 12,716.63, 19,077.66 and 3,951.21

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Solution

The fourth proportional to 12,716.63, 19,077.66 and 3,951.21 is: 5,927.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,716.63 : 19,077.66 = 3,951.21 : x
  2. Step 2: Convert to fraction form
    12,716.63/19,077.66 = 3,951.21/x
  3. Step 3: Cross multiply
    12,716.63x = 19,077.66 × 3,951.21
  4. Step 4: Simplify right side
    12,716.63x = 75,379,840.97
  5. Step 5: Solve for x
    x = 75,379,840.97/12,716.63
  6. Step 6: Final answer
    x = 5,927.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.