Home / 8,717.45-13,074.35-2,872.69

Finding the Fourth Proportional to 8,717.45, 13,074.35 and 2,872.69

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Solution

The fourth proportional to 8,717.45, 13,074.35 and 2,872.69 is: 4,308.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.45 : 13,074.35 = 2,872.69 : x
  2. Step 2: Convert to fraction form
    8,717.45/13,074.35 = 2,872.69/x
  3. Step 3: Cross multiply
    8,717.45x = 13,074.35 × 2,872.69
  4. Step 4: Simplify right side
    8,717.45x = 37,558,507.45
  5. Step 5: Solve for x
    x = 37,558,507.45/8,717.45
  6. Step 6: Final answer
    x = 4,308.43

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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.