Home / 13,412.68-20,111.18-4,049.90

Finding the Fourth Proportional to 13,412.68, 20,111.18 and 4,049.90

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Solution

The fourth proportional to 13,412.68, 20,111.18 and 4,049.90 is: 6,072.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.68 : 20,111.18 = 4,049.90 : x
  2. Step 2: Convert to fraction form
    13,412.68/20,111.18 = 4,049.90/x
  3. Step 3: Cross multiply
    13,412.68x = 20,111.18 × 4,049.90
  4. Step 4: Simplify right side
    13,412.68x = 81,448,267.88
  5. Step 5: Solve for x
    x = 81,448,267.88/13,412.68
  6. Step 6: Final answer
    x = 6,072.48

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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.