Home / 11,198.58-15,451.41-9,412.84

Finding the Fourth Proportional to 11,198.58, 15,451.41 and 9,412.84

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Solution

The fourth proportional to 11,198.58, 15,451.41 and 9,412.84 is: 12,987.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,198.58 : 15,451.41 = 9,412.84 : x
  2. Step 2: Convert to fraction form
    11,198.58/15,451.41 = 9,412.84/x
  3. Step 3: Cross multiply
    11,198.58x = 15,451.41 × 9,412.84
  4. Step 4: Simplify right side
    11,198.58x = 145,441,650.10
  5. Step 5: Solve for x
    x = 145,441,650.10/11,198.58
  6. Step 6: Final answer
    x = 12,987.51

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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.