Home / 13,078.15-18,034.60-11,195.96

Finding the Fourth Proportional to 13,078.15, 18,034.60 and 11,195.96

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Solution

The fourth proportional to 13,078.15, 18,034.60 and 11,195.96 is: 15,439.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.15 : 18,034.60 = 11,195.96 : x
  2. Step 2: Convert to fraction form
    13,078.15/18,034.60 = 11,195.96/x
  3. Step 3: Cross multiply
    13,078.15x = 18,034.60 × 11,195.96
  4. Step 4: Simplify right side
    13,078.15x = 201,914,677.31
  5. Step 5: Solve for x
    x = 201,914,677.31/13,078.15
  6. Step 6: Final answer
    x = 15,439.09

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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.