Home / 10,903.20-16,355.04-3,112.60

Finding the Fourth Proportional to 10,903.20, 16,355.04 and 3,112.60

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Solution

The fourth proportional to 10,903.20, 16,355.04 and 3,112.60 is: 4,668.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,903.20 : 16,355.04 = 3,112.60 : x
  2. Step 2: Convert to fraction form
    10,903.20/16,355.04 = 3,112.60/x
  3. Step 3: Cross multiply
    10,903.20x = 16,355.04 × 3,112.60
  4. Step 4: Simplify right side
    10,903.20x = 50,906,697.50
  5. Step 5: Solve for x
    x = 50,906,697.50/10,903.20
  6. Step 6: Final answer
    x = 4,668.97

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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.