Home / 13,568.75-18,728.52-8,859.41

Finding the Fourth Proportional to 13,568.75, 18,728.52 and 8,859.41

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Solution

The fourth proportional to 13,568.75, 18,728.52 and 8,859.41 is: 12,228.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.75 : 18,728.52 = 8,859.41 : x
  2. Step 2: Convert to fraction form
    13,568.75/18,728.52 = 8,859.41/x
  3. Step 3: Cross multiply
    13,568.75x = 18,728.52 × 8,859.41
  4. Step 4: Simplify right side
    13,568.75x = 165,923,637.37
  5. Step 5: Solve for x
    x = 165,923,637.37/13,568.75
  6. Step 6: Final answer
    x = 12,228.37

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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.