Home / 13,087.90-18,067.58-8,056.44

Finding the Fourth Proportional to 13,087.90, 18,067.58 and 8,056.44

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Solution

The fourth proportional to 13,087.90, 18,067.58 and 8,056.44 is: 11,121.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.90 : 18,067.58 = 8,056.44 : x
  2. Step 2: Convert to fraction form
    13,087.90/18,067.58 = 8,056.44/x
  3. Step 3: Cross multiply
    13,087.90x = 18,067.58 × 8,056.44
  4. Step 4: Simplify right side
    13,087.90x = 145,560,335.99
  5. Step 5: Solve for x
    x = 145,560,335.99/13,087.90
  6. Step 6: Final answer
    x = 11,121.75

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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.