Home / 11,451.21-17,265.12-11,380.13

Finding the Fourth Proportional to 11,451.21, 17,265.12 and 11,380.13

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Solution

The fourth proportional to 11,451.21, 17,265.12 and 11,380.13 is: 17,157.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.21 : 17,265.12 = 11,380.13 : x
  2. Step 2: Convert to fraction form
    11,451.21/17,265.12 = 11,380.13/x
  3. Step 3: Cross multiply
    11,451.21x = 17,265.12 × 11,380.13
  4. Step 4: Simplify right side
    11,451.21x = 196,479,245.81
  5. Step 5: Solve for x
    x = 196,479,245.81/11,451.21
  6. Step 6: Final answer
    x = 17,157.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.