Home / 7,986.17-11,977.20-3,307.49

Finding the Fourth Proportional to 7,986.17, 11,977.20 and 3,307.49

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Solution

The fourth proportional to 7,986.17, 11,977.20 and 3,307.49 is: 4,960.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.17 : 11,977.20 = 3,307.49 : x
  2. Step 2: Convert to fraction form
    7,986.17/11,977.20 = 3,307.49/x
  3. Step 3: Cross multiply
    7,986.17x = 11,977.20 × 3,307.49
  4. Step 4: Simplify right side
    7,986.17x = 39,614,469.23
  5. Step 5: Solve for x
    x = 39,614,469.23/7,986.17
  6. Step 6: Final answer
    x = 4,960.38

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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.