Home / 11,388.66-15,715.94-6,352.80

Finding the Fourth Proportional to 11,388.66, 15,715.94 and 6,352.80

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Solution

The fourth proportional to 11,388.66, 15,715.94 and 6,352.80 is: 8,766.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.66 : 15,715.94 = 6,352.80 : x
  2. Step 2: Convert to fraction form
    11,388.66/15,715.94 = 6,352.80/x
  3. Step 3: Cross multiply
    11,388.66x = 15,715.94 × 6,352.80
  4. Step 4: Simplify right side
    11,388.66x = 99,840,191.87
  5. Step 5: Solve for x
    x = 99,840,191.87/11,388.66
  6. Step 6: Final answer
    x = 8,766.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.