Home / 8,715.40-13,074.56-3,169.04

Finding the Fourth Proportional to 8,715.40, 13,074.56 and 3,169.04

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Solution

The fourth proportional to 8,715.40, 13,074.56 and 3,169.04 is: 4,754.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.40 : 13,074.56 = 3,169.04 : x
  2. Step 2: Convert to fraction form
    8,715.40/13,074.56 = 3,169.04/x
  3. Step 3: Cross multiply
    8,715.40x = 13,074.56 × 3,169.04
  4. Step 4: Simplify right side
    8,715.40x = 41,433,803.62
  5. Step 5: Solve for x
    x = 41,433,803.62/8,715.40
  6. Step 6: Final answer
    x = 4,754.09

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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.