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Finding the Fourth Proportional to 8,682.53, 13,039.68 and 7,950.57

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Solution

The fourth proportional to 8,682.53, 13,039.68 and 7,950.57 is: 11,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.53 : 13,039.68 = 7,950.57 : x
  2. Step 2: Convert to fraction form
    8,682.53/13,039.68 = 7,950.57/x
  3. Step 3: Cross multiply
    8,682.53x = 13,039.68 × 7,950.57
  4. Step 4: Simplify right side
    8,682.53x = 103,672,823.42
  5. Step 5: Solve for x
    x = 103,672,823.42/8,682.53
  6. Step 6: Final answer
    x = 11,940.40

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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.