Home / 11,236.20-16,838.10-4,991.10

Finding the Fourth Proportional to 11,236.20, 16,838.10 and 4,991.10

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Solution

The fourth proportional to 11,236.20, 16,838.10 and 4,991.10 is: 7,479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.20 : 16,838.10 = 4,991.10 : x
  2. Step 2: Convert to fraction form
    11,236.20/16,838.10 = 4,991.10/x
  3. Step 3: Cross multiply
    11,236.20x = 16,838.10 × 4,991.10
  4. Step 4: Simplify right side
    11,236.20x = 84,040,640.91
  5. Step 5: Solve for x
    x = 84,040,640.91/11,236.20
  6. Step 6: Final answer
    x = 7,479.45

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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.