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Finding the Fourth Proportional to 7,893.87, 11,811.57 and 6,329.10

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Solution

The fourth proportional to 7,893.87, 11,811.57 and 6,329.10 is: 9,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.87 : 11,811.57 = 6,329.10 : x
  2. Step 2: Convert to fraction form
    7,893.87/11,811.57 = 6,329.10/x
  3. Step 3: Cross multiply
    7,893.87x = 11,811.57 × 6,329.10
  4. Step 4: Simplify right side
    7,893.87x = 74,756,607.69
  5. Step 5: Solve for x
    x = 74,756,607.69/7,893.87
  6. Step 6: Final answer
    x = 9,470.21

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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.