Home / 11,995.20-17,989.88-5,328.03

Finding the Fourth Proportional to 11,995.20, 17,989.88 and 5,328.03

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Solution

The fourth proportional to 11,995.20, 17,989.88 and 5,328.03 is: 7,990.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.20 : 17,989.88 = 5,328.03 : x
  2. Step 2: Convert to fraction form
    11,995.20/17,989.88 = 5,328.03/x
  3. Step 3: Cross multiply
    11,995.20x = 17,989.88 × 5,328.03
  4. Step 4: Simplify right side
    11,995.20x = 95,850,593.70
  5. Step 5: Solve for x
    x = 95,850,593.70/11,995.20
  6. Step 6: Final answer
    x = 7,990.75

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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.