Home / 8,715.75-13,076.86-3,169.53

Finding the Fourth Proportional to 8,715.75, 13,076.86 and 3,169.53

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Solution

The fourth proportional to 8,715.75, 13,076.86 and 3,169.53 is: 4,755.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.75 : 13,076.86 = 3,169.53 : x
  2. Step 2: Convert to fraction form
    8,715.75/13,076.86 = 3,169.53/x
  3. Step 3: Cross multiply
    8,715.75x = 13,076.86 × 3,169.53
  4. Step 4: Simplify right side
    8,715.75x = 41,447,498.09
  5. Step 5: Solve for x
    x = 41,447,498.09/8,715.75
  6. Step 6: Final answer
    x = 4,755.47

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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.