Home / 7,942.49-11,915.46-3,012.17

Finding the Fourth Proportional to 7,942.49, 11,915.46 and 3,012.17

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Solution

The fourth proportional to 7,942.49, 11,915.46 and 3,012.17 is: 4,518.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.49 : 11,915.46 = 3,012.17 : x
  2. Step 2: Convert to fraction form
    7,942.49/11,915.46 = 3,012.17/x
  3. Step 3: Cross multiply
    7,942.49x = 11,915.46 × 3,012.17
  4. Step 4: Simplify right side
    7,942.49x = 35,891,420.94
  5. Step 5: Solve for x
    x = 35,891,420.94/7,942.49
  6. Step 6: Final answer
    x = 4,518.92

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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.