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Finding the Fourth Proportional to 7,996.66, 11,994.41 and 3,315.47

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Solution

The fourth proportional to 7,996.66, 11,994.41 and 3,315.47 is: 4,972.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,996.66 : 11,994.41 = 3,315.47 : x
  2. Step 2: Convert to fraction form
    7,996.66/11,994.41 = 3,315.47/x
  3. Step 3: Cross multiply
    7,996.66x = 11,994.41 × 3,315.47
  4. Step 4: Simplify right side
    7,996.66x = 39,767,054.84
  5. Step 5: Solve for x
    x = 39,767,054.84/7,996.66
  6. Step 6: Final answer
    x = 4,972.96

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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.