Home / 11,477.43-17,191.71-8,673.21

Finding the Fourth Proportional to 11,477.43, 17,191.71 and 8,673.21

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Solution

The fourth proportional to 11,477.43, 17,191.71 and 8,673.21 is: 12,991.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.43 : 17,191.71 = 8,673.21 : x
  2. Step 2: Convert to fraction form
    11,477.43/17,191.71 = 8,673.21/x
  3. Step 3: Cross multiply
    11,477.43x = 17,191.71 × 8,673.21
  4. Step 4: Simplify right side
    11,477.43x = 149,107,311.09
  5. Step 5: Solve for x
    x = 149,107,311.09/11,477.43
  6. Step 6: Final answer
    x = 12,991.35

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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.