Home / 13,450.88-18,556.80-8,480

Finding the Fourth Proportional to 13,450.88, 18,556.80 and 8,480

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Solution

The fourth proportional to 13,450.88, 18,556.80 and 8,480 is: 11,698.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.88 : 18,556.80 = 8,480 : x
  2. Step 2: Convert to fraction form
    13,450.88/18,556.80 = 8,480/x
  3. Step 3: Cross multiply
    13,450.88x = 18,556.80 × 8,480
  4. Step 4: Simplify right side
    13,450.88x = 157,361,664
  5. Step 5: Solve for x
    x = 157,361,664/13,450.88
  6. Step 6: Final answer
    x = 11,698.99

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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.