Home / 11,418.15-15,755.54-6,382.18

Finding the Fourth Proportional to 11,418.15, 15,755.54 and 6,382.18

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Solution

The fourth proportional to 11,418.15, 15,755.54 and 6,382.18 is: 8,806.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.15 : 15,755.54 = 6,382.18 : x
  2. Step 2: Convert to fraction form
    11,418.15/15,755.54 = 6,382.18/x
  3. Step 3: Cross multiply
    11,418.15x = 15,755.54 × 6,382.18
  4. Step 4: Simplify right side
    11,418.15x = 100,554,692.28
  5. Step 5: Solve for x
    x = 100,554,692.28/11,418.15
  6. Step 6: Final answer
    x = 8,806.57

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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.