Home / 11,418.18-15,755.76-6,382.41

Finding the Fourth Proportional to 11,418.18, 15,755.76 and 6,382.41

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Solution

The fourth proportional to 11,418.18, 15,755.76 and 6,382.41 is: 8,806.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.18 : 15,755.76 = 6,382.41 : x
  2. Step 2: Convert to fraction form
    11,418.18/15,755.76 = 6,382.41/x
  3. Step 3: Cross multiply
    11,418.18x = 15,755.76 × 6,382.41
  4. Step 4: Simplify right side
    11,418.18x = 100,559,720.18
  5. Step 5: Solve for x
    x = 100,559,720.18/11,418.18
  6. Step 6: Final answer
    x = 8,806.98

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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.