Home / 11,220.36-16,832.96-3,429.76

Finding the Fourth Proportional to 11,220.36, 16,832.96 and 3,429.76

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Solution

The fourth proportional to 11,220.36, 16,832.96 and 3,429.76 is: 5,145.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.36 : 16,832.96 = 3,429.76 : x
  2. Step 2: Convert to fraction form
    11,220.36/16,832.96 = 3,429.76/x
  3. Step 3: Cross multiply
    11,220.36x = 16,832.96 × 3,429.76
  4. Step 4: Simplify right side
    11,220.36x = 57,733,012.89
  5. Step 5: Solve for x
    x = 57,733,012.89/11,220.36
  6. Step 6: Final answer
    x = 5,145.38

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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.