Home / 18,388.08-27,588.78-11,359.89

Finding the Fourth Proportional to 18,388.08, 27,588.78 and 11,359.89

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Solution

The fourth proportional to 18,388.08, 27,588.78 and 11,359.89 is: 17,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.08 : 27,588.78 = 11,359.89 : x
  2. Step 2: Convert to fraction form
    18,388.08/27,588.78 = 11,359.89/x
  3. Step 3: Cross multiply
    18,388.08x = 27,588.78 × 11,359.89
  4. Step 4: Simplify right side
    18,388.08x = 313,405,506.03
  5. Step 5: Solve for x
    x = 313,405,506.03/18,388.08
  6. Step 6: Final answer
    x = 17,043.95

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1.5x scale

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.