Home / 11,229.04-16,845.39-4,991.20

Finding the Fourth Proportional to 11,229.04, 16,845.39 and 4,991.20

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Solution

The fourth proportional to 11,229.04, 16,845.39 and 4,991.20 is: 7,487.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.04 : 16,845.39 = 4,991.20 : x
  2. Step 2: Convert to fraction form
    11,229.04/16,845.39 = 4,991.20/x
  3. Step 3: Cross multiply
    11,229.04x = 16,845.39 × 4,991.20
  4. Step 4: Simplify right side
    11,229.04x = 84,078,710.57
  5. Step 5: Solve for x
    x = 84,078,710.57/11,229.04
  6. Step 6: Final answer
    x = 7,487.61

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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.