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Finding the Fourth Proportional to 8,713.95, 13,063.57 and 3,779.88

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Solution

The fourth proportional to 8,713.95, 13,063.57 and 3,779.88 is: 5,666.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.95 : 13,063.57 = 3,779.88 : x
  2. Step 2: Convert to fraction form
    8,713.95/13,063.57 = 3,779.88/x
  3. Step 3: Cross multiply
    8,713.95x = 13,063.57 × 3,779.88
  4. Step 4: Simplify right side
    8,713.95x = 49,378,668.53
  5. Step 5: Solve for x
    x = 49,378,668.53/8,713.95
  6. Step 6: Final answer
    x = 5,666.63

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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.