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Finding the Fourth Proportional to 8,800.20, 12,140.94 and 5,441.94

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Solution

The fourth proportional to 8,800.20, 12,140.94 and 5,441.94 is: 7,507.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,800.20 : 12,140.94 = 5,441.94 : x
  2. Step 2: Convert to fraction form
    8,800.20/12,140.94 = 5,441.94/x
  3. Step 3: Cross multiply
    8,800.20x = 12,140.94 × 5,441.94
  4. Step 4: Simplify right side
    8,800.20x = 66,070,267.02
  5. Step 5: Solve for x
    x = 66,070,267.02/8,800.20
  6. Step 6: Final answer
    x = 7,507.81

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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.