Home / 13,187.44-18,198.90-8,997.04

Finding the Fourth Proportional to 13,187.44, 18,198.90 and 8,997.04

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Solution

The fourth proportional to 13,187.44, 18,198.90 and 8,997.04 is: 12,416.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.44 : 18,198.90 = 8,997.04 : x
  2. Step 2: Convert to fraction form
    13,187.44/18,198.90 = 8,997.04/x
  3. Step 3: Cross multiply
    13,187.44x = 18,198.90 × 8,997.04
  4. Step 4: Simplify right side
    13,187.44x = 163,736,231.26
  5. Step 5: Solve for x
    x = 163,736,231.26/13,187.44
  6. Step 6: Final answer
    x = 12,416.07

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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.