Home / 11,086.50-15,299.36-7,107.60

Finding the Fourth Proportional to 11,086.50, 15,299.36 and 7,107.60

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Solution

The fourth proportional to 11,086.50, 15,299.36 and 7,107.60 is: 9,808.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,086.50 : 15,299.36 = 7,107.60 : x
  2. Step 2: Convert to fraction form
    11,086.50/15,299.36 = 7,107.60/x
  3. Step 3: Cross multiply
    11,086.50x = 15,299.36 × 7,107.60
  4. Step 4: Simplify right side
    11,086.50x = 108,741,695.60
  5. Step 5: Solve for x
    x = 108,741,695.60/11,086.50
  6. Step 6: Final answer
    x = 9,808.48

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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.