Home / 11,214.38-16,821.38-3,423.18

Finding the Fourth Proportional to 11,214.38, 16,821.38 and 3,423.18

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Solution

The fourth proportional to 11,214.38, 16,821.38 and 3,423.18 is: 5,134.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.38 : 16,821.38 = 3,423.18 : x
  2. Step 2: Convert to fraction form
    11,214.38/16,821.38 = 3,423.18/x
  3. Step 3: Cross multiply
    11,214.38x = 16,821.38 × 3,423.18
  4. Step 4: Simplify right side
    11,214.38x = 57,582,594.47
  5. Step 5: Solve for x
    x = 57,582,594.47/11,214.38
  6. Step 6: Final answer
    x = 5,134.71

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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.