Home / 8,212.05-12,307.80-3,526.64

Finding the Fourth Proportional to 8,212.05, 12,307.80 and 3,526.64

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Solution

The fourth proportional to 8,212.05, 12,307.80 and 3,526.64 is: 5,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.05 : 12,307.80 = 3,526.64 : x
  2. Step 2: Convert to fraction form
    8,212.05/12,307.80 = 3,526.64/x
  3. Step 3: Cross multiply
    8,212.05x = 12,307.80 × 3,526.64
  4. Step 4: Simplify right side
    8,212.05x = 43,405,157.79
  5. Step 5: Solve for x
    x = 43,405,157.79/8,212.05
  6. Step 6: Final answer
    x = 5,285.54

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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.