Home / 12,623.48-18,934.52-3,857.68

Finding the Fourth Proportional to 12,623.48, 18,934.52 and 3,857.68

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Solution

The fourth proportional to 12,623.48, 18,934.52 and 3,857.68 is: 5,786.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.48 : 18,934.52 = 3,857.68 : x
  2. Step 2: Convert to fraction form
    12,623.48/18,934.52 = 3,857.68/x
  3. Step 3: Cross multiply
    12,623.48x = 18,934.52 × 3,857.68
  4. Step 4: Simplify right side
    12,623.48x = 73,043,319.11
  5. Step 5: Solve for x
    x = 73,043,319.11/12,623.48
  6. Step 6: Final answer
    x = 5,786.31

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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.