Home / 13,630.74-20,446.24-3,770.56

Finding the Fourth Proportional to 13,630.74, 20,446.24 and 3,770.56

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Solution

The fourth proportional to 13,630.74, 20,446.24 and 3,770.56 is: 5,655.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.74 : 20,446.24 = 3,770.56 : x
  2. Step 2: Convert to fraction form
    13,630.74/20,446.24 = 3,770.56/x
  3. Step 3: Cross multiply
    13,630.74x = 20,446.24 × 3,770.56
  4. Step 4: Simplify right side
    13,630.74x = 77,093,774.69
  5. Step 5: Solve for x
    x = 77,093,774.69/13,630.74
  6. Step 6: Final answer
    x = 5,655.88

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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.