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Finding the Fourth Proportional to 17,890.07, 26,832.67 and 8,406.99

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Solution

The fourth proportional to 17,890.07, 26,832.67 and 8,406.99 is: 12,609.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,890.07 : 26,832.67 = 8,406.99 : x
  2. Step 2: Convert to fraction form
    17,890.07/26,832.67 = 8,406.99/x
  3. Step 3: Cross multiply
    17,890.07x = 26,832.67 × 8,406.99
  4. Step 4: Simplify right side
    17,890.07x = 225,581,967.35
  5. Step 5: Solve for x
    x = 225,581,967.35/17,890.07
  6. Step 6: Final answer
    x = 12,609.34

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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.