Home / 13,630.82-20,446.49-4,270.46

Finding the Fourth Proportional to 13,630.82, 20,446.49 and 4,270.46

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Solution

The fourth proportional to 13,630.82, 20,446.49 and 4,270.46 is: 6,405.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.82 : 20,446.49 = 4,270.46 : x
  2. Step 2: Convert to fraction form
    13,630.82/20,446.49 = 4,270.46/x
  3. Step 3: Cross multiply
    13,630.82x = 20,446.49 × 4,270.46
  4. Step 4: Simplify right side
    13,630.82x = 87,315,826.13
  5. Step 5: Solve for x
    x = 87,315,826.13/13,630.82
  6. Step 6: Final answer
    x = 6,405.77

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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.