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Finding the Fourth Proportional to 8,555.85, 12,834.13 and 2,937.38

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Solution

The fourth proportional to 8,555.85, 12,834.13 and 2,937.38 is: 4,406.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.85 : 12,834.13 = 2,937.38 : x
  2. Step 2: Convert to fraction form
    8,555.85/12,834.13 = 2,937.38/x
  3. Step 3: Cross multiply
    8,555.85x = 12,834.13 × 2,937.38
  4. Step 4: Simplify right side
    8,555.85x = 37,698,716.78
  5. Step 5: Solve for x
    x = 37,698,716.78/8,555.85
  6. Step 6: Final answer
    x = 4,406.19

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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.