Home / 18,400.68-27,579.28-7,867.62

Finding the Fourth Proportional to 18,400.68, 27,579.28 and 7,867.62

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Solution

The fourth proportional to 18,400.68, 27,579.28 and 7,867.62 is: 11,792.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,400.68 : 27,579.28 = 7,867.62 : x
  2. Step 2: Convert to fraction form
    18,400.68/27,579.28 = 7,867.62/x
  3. Step 3: Cross multiply
    18,400.68x = 27,579.28 × 7,867.62
  4. Step 4: Simplify right side
    18,400.68x = 216,983,294.91
  5. Step 5: Solve for x
    x = 216,983,294.91/18,400.68
  6. Step 6: Final answer
    x = 11,792.13

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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.