Home / 13,416.42-20,106.40-5,091.96

Finding the Fourth Proportional to 13,416.42, 20,106.40 and 5,091.96

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Solution

The fourth proportional to 13,416.42, 20,106.40 and 5,091.96 is: 7,631.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.42 : 20,106.40 = 5,091.96 : x
  2. Step 2: Convert to fraction form
    13,416.42/20,106.40 = 5,091.96/x
  3. Step 3: Cross multiply
    13,416.42x = 20,106.40 × 5,091.96
  4. Step 4: Simplify right side
    13,416.42x = 102,380,984.54
  5. Step 5: Solve for x
    x = 102,380,984.54/13,416.42
  6. Step 6: Final answer
    x = 7,631.02

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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.