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Finding the Fourth Proportional to 13,896.18, 20,824.02 and 10,550.10

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Solution

The fourth proportional to 13,896.18, 20,824.02 and 10,550.10 is: 15,809.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,896.18 : 20,824.02 = 10,550.10 : x
  2. Step 2: Convert to fraction form
    13,896.18/20,824.02 = 10,550.10/x
  3. Step 3: Cross multiply
    13,896.18x = 20,824.02 × 10,550.10
  4. Step 4: Simplify right side
    13,896.18x = 219,695,493.40
  5. Step 5: Solve for x
    x = 219,695,493.40/13,896.18
  6. Step 6: Final answer
    x = 15,809.78

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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.