Home / 11,972.59-16,521.39-6,936.40

Finding the Fourth Proportional to 11,972.59, 16,521.39 and 6,936.40

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Solution

The fourth proportional to 11,972.59, 16,521.39 and 6,936.40 is: 9,571.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.59 : 16,521.39 = 6,936.40 : x
  2. Step 2: Convert to fraction form
    11,972.59/16,521.39 = 6,936.40/x
  3. Step 3: Cross multiply
    11,972.59x = 16,521.39 × 6,936.40
  4. Step 4: Simplify right side
    11,972.59x = 114,598,969.60
  5. Step 5: Solve for x
    x = 114,598,969.60/11,972.59
  6. Step 6: Final answer
    x = 9,571.78

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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.