Home / 18,388.16-27,582.07-5,240.56

Finding the Fourth Proportional to 18,388.16, 27,582.07 and 5,240.56

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Solution

The fourth proportional to 18,388.16, 27,582.07 and 5,240.56 is: 7,860.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.16 : 27,582.07 = 5,240.56 : x
  2. Step 2: Convert to fraction form
    18,388.16/27,582.07 = 5,240.56/x
  3. Step 3: Cross multiply
    18,388.16x = 27,582.07 × 5,240.56
  4. Step 4: Simplify right side
    18,388.16x = 144,545,328.65
  5. Step 5: Solve for x
    x = 144,545,328.65/18,388.16
  6. Step 6: Final answer
    x = 7,860.78

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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.