Home / 13,441.14-18,540.17-8,667.20

Finding the Fourth Proportional to 13,441.14, 18,540.17 and 8,667.20

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Solution

The fourth proportional to 13,441.14, 18,540.17 and 8,667.20 is: 11,955.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.14 : 18,540.17 = 8,667.20 : x
  2. Step 2: Convert to fraction form
    13,441.14/18,540.17 = 8,667.20/x
  3. Step 3: Cross multiply
    13,441.14x = 18,540.17 × 8,667.20
  4. Step 4: Simplify right side
    13,441.14x = 160,691,361.42
  5. Step 5: Solve for x
    x = 160,691,361.42/13,441.14
  6. Step 6: Final answer
    x = 11,955.19

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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.