Home / 8,786.21-13,169.93-4,100.76

Finding the Fourth Proportional to 8,786.21, 13,169.93 and 4,100.76

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Solution

The fourth proportional to 8,786.21, 13,169.93 and 4,100.76 is: 6,146.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.21 : 13,169.93 = 4,100.76 : x
  2. Step 2: Convert to fraction form
    8,786.21/13,169.93 = 4,100.76/x
  3. Step 3: Cross multiply
    8,786.21x = 13,169.93 × 4,100.76
  4. Step 4: Simplify right side
    8,786.21x = 54,006,701.64
  5. Step 5: Solve for x
    x = 54,006,701.64/8,786.21
  6. Step 6: Final answer
    x = 6,146.76

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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.