Home / 11,912.48-17,871.12-4,516.76

Finding the Fourth Proportional to 11,912.48, 17,871.12 and 4,516.76

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Solution

The fourth proportional to 11,912.48, 17,871.12 and 4,516.76 is: 6,776.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.48 : 17,871.12 = 4,516.76 : x
  2. Step 2: Convert to fraction form
    11,912.48/17,871.12 = 4,516.76/x
  3. Step 3: Cross multiply
    11,912.48x = 17,871.12 × 4,516.76
  4. Step 4: Simplify right side
    11,912.48x = 80,719,559.97
  5. Step 5: Solve for x
    x = 80,719,559.97/11,912.48
  6. Step 6: Final answer
    x = 6,776.05

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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.