Home / 8,825.45-13,243.62-5,129.42

Finding the Fourth Proportional to 8,825.45, 13,243.62 and 5,129.42

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Solution

The fourth proportional to 8,825.45, 13,243.62 and 5,129.42 is: 7,697.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,825.45 : 13,243.62 = 5,129.42 : x
  2. Step 2: Convert to fraction form
    8,825.45/13,243.62 = 5,129.42/x
  3. Step 3: Cross multiply
    8,825.45x = 13,243.62 × 5,129.42
  4. Step 4: Simplify right side
    8,825.45x = 67,932,023.08
  5. Step 5: Solve for x
    x = 67,932,023.08/8,825.45
  6. Step 6: Final answer
    x = 7,697.29

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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.