Home / 8,072.04-12,107.92-3,912.40

Finding the Fourth Proportional to 8,072.04, 12,107.92 and 3,912.40

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Solution

The fourth proportional to 8,072.04, 12,107.92 and 3,912.40 is: 5,868.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.04 : 12,107.92 = 3,912.40 : x
  2. Step 2: Convert to fraction form
    8,072.04/12,107.92 = 3,912.40/x
  3. Step 3: Cross multiply
    8,072.04x = 12,107.92 × 3,912.40
  4. Step 4: Simplify right side
    8,072.04x = 47,371,026.21
  5. Step 5: Solve for x
    x = 47,371,026.21/8,072.04
  6. Step 6: Final answer
    x = 5,868.53

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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.