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Finding the Fourth Proportional to 17,828.40, 26,713.80 and 11,242.80

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Solution

The fourth proportional to 17,828.40, 26,713.80 and 11,242.80 is: 16,846.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,828.40 : 26,713.80 = 11,242.80 : x
  2. Step 2: Convert to fraction form
    17,828.40/26,713.80 = 11,242.80/x
  3. Step 3: Cross multiply
    17,828.40x = 26,713.80 × 11,242.80
  4. Step 4: Simplify right side
    17,828.40x = 300,337,910.64
  5. Step 5: Solve for x
    x = 300,337,910.64/17,828.40
  6. Step 6: Final answer
    x = 16,846.04

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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.