Home / 12,134.99-18,202.47-3,815.73

Finding the Fourth Proportional to 12,134.99, 18,202.47 and 3,815.73

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Solution

The fourth proportional to 12,134.99, 18,202.47 and 3,815.73 is: 5,723.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134.99 : 18,202.47 = 3,815.73 : x
  2. Step 2: Convert to fraction form
    12,134.99/18,202.47 = 3,815.73/x
  3. Step 3: Cross multiply
    12,134.99x = 18,202.47 × 3,815.73
  4. Step 4: Simplify right side
    12,134.99x = 69,455,779.11
  5. Step 5: Solve for x
    x = 69,455,779.11/12,134.99
  6. Step 6: Final answer
    x = 5,723.59

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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.