Home / 19,650.87-27,118.78-11,152.82

Finding the Fourth Proportional to 19,650.87, 27,118.78 and 11,152.82

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Solution

The fourth proportional to 19,650.87, 27,118.78 and 11,152.82 is: 15,391.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,650.87 : 27,118.78 = 11,152.82 : x
  2. Step 2: Convert to fraction form
    19,650.87/27,118.78 = 11,152.82/x
  3. Step 3: Cross multiply
    19,650.87x = 27,118.78 × 11,152.82
  4. Step 4: Simplify right side
    19,650.87x = 302,450,911.87
  5. Step 5: Solve for x
    x = 302,450,911.87/19,650.87
  6. Step 6: Final answer
    x = 15,391.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.