Home / 16,933.20-25,399.80-5,247.60

Finding the Fourth Proportional to 16,933.20, 25,399.80 and 5,247.60

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Solution

The fourth proportional to 16,933.20, 25,399.80 and 5,247.60 is: 7,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,933.20 : 25,399.80 = 5,247.60 : x
  2. Step 2: Convert to fraction form
    16,933.20/25,399.80 = 5,247.60/x
  3. Step 3: Cross multiply
    16,933.20x = 25,399.80 × 5,247.60
  4. Step 4: Simplify right side
    16,933.20x = 133,287,990.48
  5. Step 5: Solve for x
    x = 133,287,990.48/16,933.20
  6. Step 6: Final answer
    x = 7,871.40

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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.