Home / 8,715.41-13,073.97-2,790.80

Finding the Fourth Proportional to 8,715.41, 13,073.97 and 2,790.80

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Solution

The fourth proportional to 8,715.41, 13,073.97 and 2,790.80 is: 4,186.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.41 : 13,073.97 = 2,790.80 : x
  2. Step 2: Convert to fraction form
    8,715.41/13,073.97 = 2,790.80/x
  3. Step 3: Cross multiply
    8,715.41x = 13,073.97 × 2,790.80
  4. Step 4: Simplify right side
    8,715.41x = 36,486,868.16
  5. Step 5: Solve for x
    x = 36,486,868.16/8,715.41
  6. Step 6: Final answer
    x = 4,186.48

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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.