Home / 11,969.55-18,043.96-11,166.74

Finding the Fourth Proportional to 11,969.55, 18,043.96 and 11,166.74

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Solution

The fourth proportional to 11,969.55, 18,043.96 and 11,166.74 is: 16,833.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,969.55 : 18,043.96 = 11,166.74 : x
  2. Step 2: Convert to fraction form
    11,969.55/18,043.96 = 11,166.74/x
  3. Step 3: Cross multiply
    11,969.55x = 18,043.96 × 11,166.74
  4. Step 4: Simplify right side
    11,969.55x = 201,492,180.36
  5. Step 5: Solve for x
    x = 201,492,180.36/11,969.55
  6. Step 6: Final answer
    x = 16,833.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.