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Finding the Fourth Proportional to 17,679.34, 26,519.01 and 8,313.54

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Solution

The fourth proportional to 17,679.34, 26,519.01 and 8,313.54 is: 12,470.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,679.34 : 26,519.01 = 8,313.54 : x
  2. Step 2: Convert to fraction form
    17,679.34/26,519.01 = 8,313.54/x
  3. Step 3: Cross multiply
    17,679.34x = 26,519.01 × 8,313.54
  4. Step 4: Simplify right side
    17,679.34x = 220,466,850.40
  5. Step 5: Solve for x
    x = 220,466,850.40/17,679.34
  6. Step 6: Final answer
    x = 12,470.31

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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.