Home / 13,517.82-18,659.43-10,170.09

Finding the Fourth Proportional to 13,517.82, 18,659.43 and 10,170.09

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Solution

The fourth proportional to 13,517.82, 18,659.43 and 10,170.09 is: 14,038.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.82 : 18,659.43 = 10,170.09 : x
  2. Step 2: Convert to fraction form
    13,517.82/18,659.43 = 10,170.09/x
  3. Step 3: Cross multiply
    13,517.82x = 18,659.43 × 10,170.09
  4. Step 4: Simplify right side
    13,517.82x = 189,768,082.45
  5. Step 5: Solve for x
    x = 189,768,082.45/13,517.82
  6. Step 6: Final answer
    x = 14,038.36

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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.