Home / 8,743.80-13,120.50-4,126.68

Finding the Fourth Proportional to 8,743.80, 13,120.50 and 4,126.68

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Solution

The fourth proportional to 8,743.80, 13,120.50 and 4,126.68 is: 6,192.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.80 : 13,120.50 = 4,126.68 : x
  2. Step 2: Convert to fraction form
    8,743.80/13,120.50 = 4,126.68/x
  3. Step 3: Cross multiply
    8,743.80x = 13,120.50 × 4,126.68
  4. Step 4: Simplify right side
    8,743.80x = 54,144,104.94
  5. Step 5: Solve for x
    x = 54,144,104.94/8,743.80
  6. Step 6: Final answer
    x = 6,192.29

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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.