Home / 7,989.84-11,962-6,348.72

Finding the Fourth Proportional to 7,989.84, 11,962 and 6,348.72

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Solution

The fourth proportional to 7,989.84, 11,962 and 6,348.72 is: 9,504.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.84 : 11,962 = 6,348.72 : x
  2. Step 2: Convert to fraction form
    7,989.84/11,962 = 6,348.72/x
  3. Step 3: Cross multiply
    7,989.84x = 11,962 × 6,348.72
  4. Step 4: Simplify right side
    7,989.84x = 75,943,388.64
  5. Step 5: Solve for x
    x = 75,943,388.64/7,989.84
  6. Step 6: Final answer
    x = 9,504.99

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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.