Home / 8,989.20-12,401.44-5,965.75

Finding the Fourth Proportional to 8,989.20, 12,401.44 and 5,965.75

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Solution

The fourth proportional to 8,989.20, 12,401.44 and 5,965.75 is: 8,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.20 : 12,401.44 = 5,965.75 : x
  2. Step 2: Convert to fraction form
    8,989.20/12,401.44 = 5,965.75/x
  3. Step 3: Cross multiply
    8,989.20x = 12,401.44 × 5,965.75
  4. Step 4: Simplify right side
    8,989.20x = 73,983,844.76
  5. Step 5: Solve for x
    x = 73,983,844.76/8,989.20
  6. Step 6: Final answer
    x = 8,230.30

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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.