Home / 11,120.11-16,680.18-2,800.12

Finding the Fourth Proportional to 11,120.11, 16,680.18 and 2,800.12

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Solution

The fourth proportional to 11,120.11, 16,680.18 and 2,800.12 is: 4,200.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.11 : 16,680.18 = 2,800.12 : x
  2. Step 2: Convert to fraction form
    11,120.11/16,680.18 = 2,800.12/x
  3. Step 3: Cross multiply
    11,120.11x = 16,680.18 × 2,800.12
  4. Step 4: Simplify right side
    11,120.11x = 46,706,505.62
  5. Step 5: Solve for x
    x = 46,706,505.62/11,120.11
  6. Step 6: Final answer
    x = 4,200.18

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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.