Home / 9,412.20-14,115.60-2,836.80

Finding the Fourth Proportional to 9,412.20, 14,115.60 and 2,836.80

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Solution

The fourth proportional to 9,412.20, 14,115.60 and 2,836.80 is: 4,254.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,412.20 : 14,115.60 = 2,836.80 : x
  2. Step 2: Convert to fraction form
    9,412.20/14,115.60 = 2,836.80/x
  3. Step 3: Cross multiply
    9,412.20x = 14,115.60 × 2,836.80
  4. Step 4: Simplify right side
    9,412.20x = 40,043,134.08
  5. Step 5: Solve for x
    x = 40,043,134.08/9,412.20
  6. Step 6: Final answer
    x = 4,254.39

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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.