Home / 13,517.58-18,663.03-12,098.81

Finding the Fourth Proportional to 13,517.58, 18,663.03 and 12,098.81

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Solution

The fourth proportional to 13,517.58, 18,663.03 and 12,098.81 is: 16,704.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.58 : 18,663.03 = 12,098.81 : x
  2. Step 2: Convert to fraction form
    13,517.58/18,663.03 = 12,098.81/x
  3. Step 3: Cross multiply
    13,517.58x = 18,663.03 × 12,098.81
  4. Step 4: Simplify right side
    13,517.58x = 225,800,453.99
  5. Step 5: Solve for x
    x = 225,800,453.99/13,517.58
  6. Step 6: Final answer
    x = 16,704.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.