Home / 19,818.18-27,349.94-11,858.87

Finding the Fourth Proportional to 19,818.18, 27,349.94 and 11,858.87

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Solution

The fourth proportional to 19,818.18, 27,349.94 and 11,858.87 is: 16,365.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.18 : 27,349.94 = 11,858.87 : x
  2. Step 2: Convert to fraction form
    19,818.18/27,349.94 = 11,858.87/x
  3. Step 3: Cross multiply
    19,818.18x = 27,349.94 × 11,858.87
  4. Step 4: Simplify right side
    19,818.18x = 324,339,480.99
  5. Step 5: Solve for x
    x = 324,339,480.99/19,818.18
  6. Step 6: Final answer
    x = 16,365.76

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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.