Home / 11,818.80-17,662.89-11,135.96

Finding the Fourth Proportional to 11,818.80, 17,662.89 and 11,135.96

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Solution

The fourth proportional to 11,818.80, 17,662.89 and 11,135.96 is: 16,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.80 : 17,662.89 = 11,135.96 : x
  2. Step 2: Convert to fraction form
    11,818.80/17,662.89 = 11,135.96/x
  3. Step 3: Cross multiply
    11,818.80x = 17,662.89 × 11,135.96
  4. Step 4: Simplify right side
    11,818.80x = 196,693,236.52
  5. Step 5: Solve for x
    x = 196,693,236.52/11,818.80
  6. Step 6: Final answer
    x = 16,642.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.