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Finding the Fourth Proportional to 8,189.80, 12,284.64 and 2,346.43

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Solution

The fourth proportional to 8,189.80, 12,284.64 and 2,346.43 is: 3,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.80 : 12,284.64 = 2,346.43 : x
  2. Step 2: Convert to fraction form
    8,189.80/12,284.64 = 2,346.43/x
  3. Step 3: Cross multiply
    8,189.80x = 12,284.64 × 2,346.43
  4. Step 4: Simplify right side
    8,189.80x = 28,825,047.84
  5. Step 5: Solve for x
    x = 28,825,047.84/8,189.80
  6. Step 6: Final answer
    x = 3,519.63

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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.