Home / 8,738.49-13,103.68-2,814.28

Finding the Fourth Proportional to 8,738.49, 13,103.68 and 2,814.28

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Solution

The fourth proportional to 8,738.49, 13,103.68 and 2,814.28 is: 4,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738.49 : 13,103.68 = 2,814.28 : x
  2. Step 2: Convert to fraction form
    8,738.49/13,103.68 = 2,814.28/x
  3. Step 3: Cross multiply
    8,738.49x = 13,103.68 × 2,814.28
  4. Step 4: Simplify right side
    8,738.49x = 36,877,424.55
  5. Step 5: Solve for x
    x = 36,877,424.55/8,738.49
  6. Step 6: Final answer
    x = 4,220.11

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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.