Home / 13,439.60-18,530.52-11,204.72

Finding the Fourth Proportional to 13,439.60, 18,530.52 and 11,204.72

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Solution

The fourth proportional to 13,439.60, 18,530.52 and 11,204.72 is: 15,449.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.60 : 18,530.52 = 11,204.72 : x
  2. Step 2: Convert to fraction form
    13,439.60/18,530.52 = 11,204.72/x
  3. Step 3: Cross multiply
    13,439.60x = 18,530.52 × 11,204.72
  4. Step 4: Simplify right side
    13,439.60x = 207,629,288.05
  5. Step 5: Solve for x
    x = 207,629,288.05/13,439.60
  6. Step 6: Final answer
    x = 15,449.07

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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.