Home / 11,964.24-16,518.78-7,489.80

Finding the Fourth Proportional to 11,964.24, 16,518.78 and 7,489.80

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Solution

The fourth proportional to 11,964.24, 16,518.78 and 7,489.80 is: 10,341.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,964.24 : 16,518.78 = 7,489.80 : x
  2. Step 2: Convert to fraction form
    11,964.24/16,518.78 = 7,489.80/x
  3. Step 3: Cross multiply
    11,964.24x = 16,518.78 × 7,489.80
  4. Step 4: Simplify right side
    11,964.24x = 123,722,358.44
  5. Step 5: Solve for x
    x = 123,722,358.44/11,964.24
  6. Step 6: Final answer
    x = 10,341.01

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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.