Home / 19,961.79-27,546.33-11,458

Finding the Fourth Proportional to 19,961.79, 27,546.33 and 11,458

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Solution

The fourth proportional to 19,961.79, 27,546.33 and 11,458 is: 15,811.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.79 : 27,546.33 = 11,458 : x
  2. Step 2: Convert to fraction form
    19,961.79/27,546.33 = 11,458/x
  3. Step 3: Cross multiply
    19,961.79x = 27,546.33 × 11,458
  4. Step 4: Simplify right side
    19,961.79x = 315,625,849.14
  5. Step 5: Solve for x
    x = 315,625,849.14/19,961.79
  6. Step 6: Final answer
    x = 15,811.50

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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.