Home / 18,436.65-27,659.84-5,290.08

Finding the Fourth Proportional to 18,436.65, 27,659.84 and 5,290.08

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Solution

The fourth proportional to 18,436.65, 27,659.84 and 5,290.08 is: 7,936.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.65 : 27,659.84 = 5,290.08 : x
  2. Step 2: Convert to fraction form
    18,436.65/27,659.84 = 5,290.08/x
  3. Step 3: Cross multiply
    18,436.65x = 27,659.84 × 5,290.08
  4. Step 4: Simplify right side
    18,436.65x = 146,322,739.94
  5. Step 5: Solve for x
    x = 146,322,739.94/18,436.65
  6. Step 6: Final answer
    x = 7,936.51

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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.