Home / 19,813.29-27,341.19-11,855.45

Finding the Fourth Proportional to 19,813.29, 27,341.19 and 11,855.45

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Solution

The fourth proportional to 19,813.29, 27,341.19 and 11,855.45 is: 16,359.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.29 : 27,341.19 = 11,855.45 : x
  2. Step 2: Convert to fraction form
    19,813.29/27,341.19 = 11,855.45/x
  3. Step 3: Cross multiply
    19,813.29x = 27,341.19 × 11,855.45
  4. Step 4: Simplify right side
    19,813.29x = 324,141,974.28
  5. Step 5: Solve for x
    x = 324,141,974.28/19,813.29
  6. Step 6: Final answer
    x = 16,359.83

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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.