Home / 13,516.94-18,662.60-8,809.43

Finding the Fourth Proportional to 13,516.94, 18,662.60 and 8,809.43

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Solution

The fourth proportional to 13,516.94, 18,662.60 and 8,809.43 is: 12,163.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.94 : 18,662.60 = 8,809.43 : x
  2. Step 2: Convert to fraction form
    13,516.94/18,662.60 = 8,809.43/x
  3. Step 3: Cross multiply
    13,516.94x = 18,662.60 × 8,809.43
  4. Step 4: Simplify right side
    13,516.94x = 164,406,797.03
  5. Step 5: Solve for x
    x = 164,406,797.03/13,516.94
  6. Step 6: Final answer
    x = 12,163.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.