Home / 18,320.99-27,462.24-7,788.56

Finding the Fourth Proportional to 18,320.99, 27,462.24 and 7,788.56

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Solution

The fourth proportional to 18,320.99, 27,462.24 and 7,788.56 is: 11,674.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.99 : 27,462.24 = 7,788.56 : x
  2. Step 2: Convert to fraction form
    18,320.99/27,462.24 = 7,788.56/x
  3. Step 3: Cross multiply
    18,320.99x = 27,462.24 × 7,788.56
  4. Step 4: Simplify right side
    18,320.99x = 213,891,166.66
  5. Step 5: Solve for x
    x = 213,891,166.66/18,320.99
  6. Step 6: Final answer
    x = 11,674.65

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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.