Home / 12,912.96-19,364.76-5,517.94

Finding the Fourth Proportional to 12,912.96, 19,364.76 and 5,517.94

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Solution

The fourth proportional to 12,912.96, 19,364.76 and 5,517.94 is: 8,274.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.96 : 19,364.76 = 5,517.94 : x
  2. Step 2: Convert to fraction form
    12,912.96/19,364.76 = 5,517.94/x
  3. Step 3: Cross multiply
    12,912.96x = 19,364.76 × 5,517.94
  4. Step 4: Simplify right side
    12,912.96x = 106,853,583.79
  5. Step 5: Solve for x
    x = 106,853,583.79/12,912.96
  6. Step 6: Final answer
    x = 8,274.91

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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.