Home / 10,903.38-16,355.22-3,112.21

Finding the Fourth Proportional to 10,903.38, 16,355.22 and 3,112.21

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Solution

The fourth proportional to 10,903.38, 16,355.22 and 3,112.21 is: 4,668.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,903.38 : 16,355.22 = 3,112.21 : x
  2. Step 2: Convert to fraction form
    10,903.38/16,355.22 = 3,112.21/x
  3. Step 3: Cross multiply
    10,903.38x = 16,355.22 × 3,112.21
  4. Step 4: Simplify right side
    10,903.38x = 50,900,879.24
  5. Step 5: Solve for x
    x = 50,900,879.24/10,903.38
  6. Step 6: Final answer
    x = 4,668.36

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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.