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Finding the Fourth Proportional to 8,709.87, 13,061.92 and 3,370.57

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Solution

The fourth proportional to 8,709.87, 13,061.92 and 3,370.57 is: 5,054.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709.87 : 13,061.92 = 3,370.57 : x
  2. Step 2: Convert to fraction form
    8,709.87/13,061.92 = 3,370.57/x
  3. Step 3: Cross multiply
    8,709.87x = 13,061.92 × 3,370.57
  4. Step 4: Simplify right side
    8,709.87x = 44,026,136.24
  5. Step 5: Solve for x
    x = 44,026,136.24/8,709.87
  6. Step 6: Final answer
    x = 5,054.74

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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.