Home / 13,404.66-18,500.58-8,100.24

Finding the Fourth Proportional to 13,404.66, 18,500.58 and 8,100.24

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Solution

The fourth proportional to 13,404.66, 18,500.58 and 8,100.24 is: 11,179.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,404.66 : 18,500.58 = 8,100.24 : x
  2. Step 2: Convert to fraction form
    13,404.66/18,500.58 = 8,100.24/x
  3. Step 3: Cross multiply
    13,404.66x = 18,500.58 × 8,100.24
  4. Step 4: Simplify right side
    13,404.66x = 149,859,138.14
  5. Step 5: Solve for x
    x = 149,859,138.14/13,404.66
  6. Step 6: Final answer
    x = 11,179.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.