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Finding the Fourth Proportional to 11,859.89, 17,786.78 and 3,537.77

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Solution

The fourth proportional to 11,859.89, 17,786.78 and 3,537.77 is: 5,305.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.89 : 17,786.78 = 3,537.77 : x
  2. Step 2: Convert to fraction form
    11,859.89/17,786.78 = 3,537.77/x
  3. Step 3: Cross multiply
    11,859.89x = 17,786.78 × 3,537.77
  4. Step 4: Simplify right side
    11,859.89x = 62,925,518.99
  5. Step 5: Solve for x
    x = 62,925,518.99/11,859.89
  6. Step 6: Final answer
    x = 5,305.74

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1.5x scale

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.