Home / 13,512.12-18,645.24-7,544.04

Finding the Fourth Proportional to 13,512.12, 18,645.24 and 7,544.04

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Solution

The fourth proportional to 13,512.12, 18,645.24 and 7,544.04 is: 10,409.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.12 : 18,645.24 = 7,544.04 : x
  2. Step 2: Convert to fraction form
    13,512.12/18,645.24 = 7,544.04/x
  3. Step 3: Cross multiply
    13,512.12x = 18,645.24 × 7,544.04
  4. Step 4: Simplify right side
    13,512.12x = 140,660,436.37
  5. Step 5: Solve for x
    x = 140,660,436.37/13,512.12
  6. Step 6: Final answer
    x = 10,409.95

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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.