Home / 7,718.97-11,553.20-4,200.19

Finding the Fourth Proportional to 7,718.97, 11,553.20 and 4,200.19

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Solution

The fourth proportional to 7,718.97, 11,553.20 and 4,200.19 is: 6,286.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.97 : 11,553.20 = 4,200.19 : x
  2. Step 2: Convert to fraction form
    7,718.97/11,553.20 = 4,200.19/x
  3. Step 3: Cross multiply
    7,718.97x = 11,553.20 × 4,200.19
  4. Step 4: Simplify right side
    7,718.97x = 48,525,635.11
  5. Step 5: Solve for x
    x = 48,525,635.11/7,718.97
  6. Step 6: Final answer
    x = 6,286.54

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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.