Home / 13,174.52-18,170.34-11,191.64

Finding the Fourth Proportional to 13,174.52, 18,170.34 and 11,191.64

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Solution

The fourth proportional to 13,174.52, 18,170.34 and 11,191.64 is: 15,435.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.52 : 18,170.34 = 11,191.64 : x
  2. Step 2: Convert to fraction form
    13,174.52/18,170.34 = 11,191.64/x
  3. Step 3: Cross multiply
    13,174.52x = 18,170.34 × 11,191.64
  4. Step 4: Simplify right side
    13,174.52x = 203,355,903.96
  5. Step 5: Solve for x
    x = 203,355,903.96/13,174.52
  6. Step 6: Final answer
    x = 15,435.55

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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.