Home / 12,551.77-18,828.14-3,786.68

Finding the Fourth Proportional to 12,551.77, 18,828.14 and 3,786.68

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Solution

The fourth proportional to 12,551.77, 18,828.14 and 3,786.68 is: 5,680.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.77 : 18,828.14 = 3,786.68 : x
  2. Step 2: Convert to fraction form
    12,551.77/18,828.14 = 3,786.68/x
  3. Step 3: Cross multiply
    12,551.77x = 18,828.14 × 3,786.68
  4. Step 4: Simplify right side
    12,551.77x = 71,296,197.71
  5. Step 5: Solve for x
    x = 71,296,197.71/12,551.77
  6. Step 6: Final answer
    x = 5,680.17

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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.