Home / 11,187.36-16,856.82-9,282.24

Finding the Fourth Proportional to 11,187.36, 16,856.82 and 9,282.24

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Solution

The fourth proportional to 11,187.36, 16,856.82 and 9,282.24 is: 13,986.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.36 : 16,856.82 = 9,282.24 : x
  2. Step 2: Convert to fraction form
    11,187.36/16,856.82 = 9,282.24/x
  3. Step 3: Cross multiply
    11,187.36x = 16,856.82 × 9,282.24
  4. Step 4: Simplify right side
    11,187.36x = 156,469,048.88
  5. Step 5: Solve for x
    x = 156,469,048.88/11,187.36
  6. Step 6: Final answer
    x = 13,986.24

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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.