Home / 19,818.82-27,350.29-11,861.38

Finding the Fourth Proportional to 19,818.82, 27,350.29 and 11,861.38

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Solution

The fourth proportional to 19,818.82, 27,350.29 and 11,861.38 is: 16,368.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.82 : 27,350.29 = 11,861.38 : x
  2. Step 2: Convert to fraction form
    19,818.82/27,350.29 = 11,861.38/x
  3. Step 3: Cross multiply
    19,818.82x = 27,350.29 × 11,861.38
  4. Step 4: Simplify right side
    19,818.82x = 324,412,123.49
  5. Step 5: Solve for x
    x = 324,412,123.49/19,818.82
  6. Step 6: Final answer
    x = 16,368.89

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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.