Home / 16,912.20-25,331.85-11,007.30

Finding the Fourth Proportional to 16,912.20, 25,331.85 and 11,007.30

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Solution

The fourth proportional to 16,912.20, 25,331.85 and 11,007.30 is: 16,487.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.20 : 25,331.85 = 11,007.30 : x
  2. Step 2: Convert to fraction form
    16,912.20/25,331.85 = 11,007.30/x
  3. Step 3: Cross multiply
    16,912.20x = 25,331.85 × 11,007.30
  4. Step 4: Simplify right side
    16,912.20x = 278,835,272.51
  5. Step 5: Solve for x
    x = 278,835,272.51/16,912.20
  6. Step 6: Final answer
    x = 16,487.23

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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.