Home / 8,718.29-13,076.06-3,786.61

Finding the Fourth Proportional to 8,718.29, 13,076.06 and 3,786.61

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Solution

The fourth proportional to 8,718.29, 13,076.06 and 3,786.61 is: 5,679.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.29 : 13,076.06 = 3,786.61 : x
  2. Step 2: Convert to fraction form
    8,718.29/13,076.06 = 3,786.61/x
  3. Step 3: Cross multiply
    8,718.29x = 13,076.06 × 3,786.61
  4. Step 4: Simplify right side
    8,718.29x = 49,513,855.24
  5. Step 5: Solve for x
    x = 49,513,855.24/8,718.29
  6. Step 6: Final answer
    x = 5,679.31

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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.