Home / 13,754.76-20,633.88-3,894.05

Finding the Fourth Proportional to 13,754.76, 20,633.88 and 3,894.05

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Solution

The fourth proportional to 13,754.76, 20,633.88 and 3,894.05 is: 5,841.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.76 : 20,633.88 = 3,894.05 : x
  2. Step 2: Convert to fraction form
    13,754.76/20,633.88 = 3,894.05/x
  3. Step 3: Cross multiply
    13,754.76x = 20,633.88 × 3,894.05
  4. Step 4: Simplify right side
    13,754.76x = 80,349,257.24
  5. Step 5: Solve for x
    x = 80,349,257.24/13,754.76
  6. Step 6: Final answer
    x = 5,841.56

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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.