Home / 13,975.20-20,930.40-9,568.80

Finding the Fourth Proportional to 13,975.20, 20,930.40 and 9,568.80

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Solution

The fourth proportional to 13,975.20, 20,930.40 and 9,568.80 is: 14,331.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.20 : 20,930.40 = 9,568.80 : x
  2. Step 2: Convert to fraction form
    13,975.20/20,930.40 = 9,568.80/x
  3. Step 3: Cross multiply
    13,975.20x = 20,930.40 × 9,568.80
  4. Step 4: Simplify right side
    13,975.20x = 200,278,811.52
  5. Step 5: Solve for x
    x = 200,278,811.52/13,975.20
  6. Step 6: Final answer
    x = 14,331.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.