Home / 13,912.10-20,868.19-4,051.62

Finding the Fourth Proportional to 13,912.10, 20,868.19 and 4,051.62

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Solution

The fourth proportional to 13,912.10, 20,868.19 and 4,051.62 is: 6,077.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.10 : 20,868.19 = 4,051.62 : x
  2. Step 2: Convert to fraction form
    13,912.10/20,868.19 = 4,051.62/x
  3. Step 3: Cross multiply
    13,912.10x = 20,868.19 × 4,051.62
  4. Step 4: Simplify right side
    13,912.10x = 84,549,975.97
  5. Step 5: Solve for x
    x = 84,549,975.97/13,912.10
  6. Step 6: Final answer
    x = 6,077.44

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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.