Home / 13,416.15-18,519.27-11,520.12

Finding the Fourth Proportional to 13,416.15, 18,519.27 and 11,520.12

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Solution

The fourth proportional to 13,416.15, 18,519.27 and 11,520.12 is: 15,902.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.15 : 18,519.27 = 11,520.12 : x
  2. Step 2: Convert to fraction form
    13,416.15/18,519.27 = 11,520.12/x
  3. Step 3: Cross multiply
    13,416.15x = 18,519.27 × 11,520.12
  4. Step 4: Simplify right side
    13,416.15x = 213,344,238.96
  5. Step 5: Solve for x
    x = 213,344,238.96/13,416.15
  6. Step 6: Final answer
    x = 15,902.04

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