Home / 13,558.49-20,343.92-8,022.68

Finding the Fourth Proportional to 13,558.49, 20,343.92 and 8,022.68

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Solution

The fourth proportional to 13,558.49, 20,343.92 and 8,022.68 is: 12,037.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.49 : 20,343.92 = 8,022.68 : x
  2. Step 2: Convert to fraction form
    13,558.49/20,343.92 = 8,022.68/x
  3. Step 3: Cross multiply
    13,558.49x = 20,343.92 × 8,022.68
  4. Step 4: Simplify right side
    13,558.49x = 163,212,760.11
  5. Step 5: Solve for x
    x = 163,212,760.11/13,558.49
  6. Step 6: Final answer
    x = 12,037.68

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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.