Home / 13,553.69-20,370.62-11,228.58

Finding the Fourth Proportional to 13,553.69, 20,370.62 and 11,228.58

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Solution

The fourth proportional to 13,553.69, 20,370.62 and 11,228.58 is: 16,876.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.69 : 20,370.62 = 11,228.58 : x
  2. Step 2: Convert to fraction form
    13,553.69/20,370.62 = 11,228.58/x
  3. Step 3: Cross multiply
    13,553.69x = 20,370.62 × 11,228.58
  4. Step 4: Simplify right side
    13,553.69x = 228,733,164.39
  5. Step 5: Solve for x
    x = 228,733,164.39/13,553.69
  6. Step 6: Final answer
    x = 16,876.09

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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.