Home / 11,385.70-17,091.35-8,800.10

Finding the Fourth Proportional to 11,385.70, 17,091.35 and 8,800.10

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Solution

The fourth proportional to 11,385.70, 17,091.35 and 8,800.10 is: 13,210.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.70 : 17,091.35 = 8,800.10 : x
  2. Step 2: Convert to fraction form
    11,385.70/17,091.35 = 8,800.10/x
  3. Step 3: Cross multiply
    11,385.70x = 17,091.35 × 8,800.10
  4. Step 4: Simplify right side
    11,385.70x = 150,405,589.14
  5. Step 5: Solve for x
    x = 150,405,589.14/11,385.70
  6. Step 6: Final answer
    x = 13,210.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.