Home / 13,563.59-20,346.64-4,203.68

Finding the Fourth Proportional to 13,563.59, 20,346.64 and 4,203.68

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Solution

The fourth proportional to 13,563.59, 20,346.64 and 4,203.68 is: 6,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.59 : 20,346.64 = 4,203.68 : x
  2. Step 2: Convert to fraction form
    13,563.59/20,346.64 = 4,203.68/x
  3. Step 3: Cross multiply
    13,563.59x = 20,346.64 × 4,203.68
  4. Step 4: Simplify right side
    13,563.59x = 85,530,651.39
  5. Step 5: Solve for x
    x = 85,530,651.39/13,563.59
  6. Step 6: Final answer
    x = 6,305.90

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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.