Home / 13,352.09-18,409.13-8,563.58

Finding the Fourth Proportional to 13,352.09, 18,409.13 and 8,563.58

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Solution

The fourth proportional to 13,352.09, 18,409.13 and 8,563.58 is: 11,806.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.09 : 18,409.13 = 8,563.58 : x
  2. Step 2: Convert to fraction form
    13,352.09/18,409.13 = 8,563.58/x
  3. Step 3: Cross multiply
    13,352.09x = 18,409.13 × 8,563.58
  4. Step 4: Simplify right side
    13,352.09x = 157,647,991.66
  5. Step 5: Solve for x
    x = 157,647,991.66/13,352.09
  6. Step 6: Final answer
    x = 11,806.99

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1.5x scale

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.