Home / 11,147.11-16,688.24-8,674.43

Finding the Fourth Proportional to 11,147.11, 16,688.24 and 8,674.43

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Solution

The fourth proportional to 11,147.11, 16,688.24 and 8,674.43 is: 12,986.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.11 : 16,688.24 = 8,674.43 : x
  2. Step 2: Convert to fraction form
    11,147.11/16,688.24 = 8,674.43/x
  3. Step 3: Cross multiply
    11,147.11x = 16,688.24 × 8,674.43
  4. Step 4: Simplify right side
    11,147.11x = 144,760,969.70
  5. Step 5: Solve for x
    x = 144,760,969.70/11,147.11
  6. Step 6: Final answer
    x = 12,986.41

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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.