Home / 10,855.20-16,282.92-3,459.60

Finding the Fourth Proportional to 10,855.20, 16,282.92 and 3,459.60

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Solution

The fourth proportional to 10,855.20, 16,282.92 and 3,459.60 is: 5,189.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.20 : 16,282.92 = 3,459.60 : x
  2. Step 2: Convert to fraction form
    10,855.20/16,282.92 = 3,459.60/x
  3. Step 3: Cross multiply
    10,855.20x = 16,282.92 × 3,459.60
  4. Step 4: Simplify right side
    10,855.20x = 56,332,390.03
  5. Step 5: Solve for x
    x = 56,332,390.03/10,855.20
  6. Step 6: Final answer
    x = 5,189.44

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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.