Home / 13,630.82-20,446.43-8,980.61

Finding the Fourth Proportional to 13,630.82, 20,446.43 and 8,980.61

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Solution

The fourth proportional to 13,630.82, 20,446.43 and 8,980.61 is: 13,471.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.82 : 20,446.43 = 8,980.61 : x
  2. Step 2: Convert to fraction form
    13,630.82/20,446.43 = 8,980.61/x
  3. Step 3: Cross multiply
    13,630.82x = 20,446.43 × 8,980.61
  4. Step 4: Simplify right side
    13,630.82x = 183,621,266.59
  5. Step 5: Solve for x
    x = 183,621,266.59/13,630.82
  6. Step 6: Final answer
    x = 13,471.04

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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.