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Finding the Fourth Proportional to 17,453.15, 26,169.80 and 11,913.20

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Solution

The fourth proportional to 17,453.15, 26,169.80 and 11,913.20 is: 17,863.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,453.15 : 26,169.80 = 11,913.20 : x
  2. Step 2: Convert to fraction form
    17,453.15/26,169.80 = 11,913.20/x
  3. Step 3: Cross multiply
    17,453.15x = 26,169.80 × 11,913.20
  4. Step 4: Simplify right side
    17,453.15x = 311,765,900.73
  5. Step 5: Solve for x
    x = 311,765,900.73/17,453.15
  6. Step 6: Final answer
    x = 17,863.02

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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.