Home / 11,709.34-17,561.58-4,311.88

Finding the Fourth Proportional to 11,709.34, 17,561.58 and 4,311.88

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Solution

The fourth proportional to 11,709.34, 17,561.58 and 4,311.88 is: 6,466.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.34 : 17,561.58 = 4,311.88 : x
  2. Step 2: Convert to fraction form
    11,709.34/17,561.58 = 4,311.88/x
  3. Step 3: Cross multiply
    11,709.34x = 17,561.58 × 4,311.88
  4. Step 4: Simplify right side
    11,709.34x = 75,723,425.57
  5. Step 5: Solve for x
    x = 75,723,425.57/11,709.34
  6. Step 6: Final answer
    x = 6,466.93

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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.