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Finding the Fourth Proportional to 17,858.79, 26,786.30 and 7,329.92

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Solution

The fourth proportional to 17,858.79, 26,786.30 and 7,329.92 is: 10,994.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,858.79 : 26,786.30 = 7,329.92 : x
  2. Step 2: Convert to fraction form
    17,858.79/26,786.30 = 7,329.92/x
  3. Step 3: Cross multiply
    17,858.79x = 26,786.30 × 7,329.92
  4. Step 4: Simplify right side
    17,858.79x = 196,341,436.10
  5. Step 5: Solve for x
    x = 196,341,436.10/17,858.79
  6. Step 6: Final answer
    x = 10,994.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.