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Finding the Fourth Proportional to 8,693.30, 13,034.19 and 3,145.92

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Solution

The fourth proportional to 8,693.30, 13,034.19 and 3,145.92 is: 4,716.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.30 : 13,034.19 = 3,145.92 : x
  2. Step 2: Convert to fraction form
    8,693.30/13,034.19 = 3,145.92/x
  3. Step 3: Cross multiply
    8,693.30x = 13,034.19 × 3,145.92
  4. Step 4: Simplify right side
    8,693.30x = 41,004,507.21
  5. Step 5: Solve for x
    x = 41,004,507.21/8,693.30
  6. Step 6: Final answer
    x = 4,716.79

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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.