Home / 7,716.20-11,558.10-4,249.40

Finding the Fourth Proportional to 7,716.20, 11,558.10 and 4,249.40

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Solution

The fourth proportional to 7,716.20, 11,558.10 and 4,249.40 is: 6,365.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.20 : 11,558.10 = 4,249.40 : x
  2. Step 2: Convert to fraction form
    7,716.20/11,558.10 = 4,249.40/x
  3. Step 3: Cross multiply
    7,716.20x = 11,558.10 × 4,249.40
  4. Step 4: Simplify right side
    7,716.20x = 49,114,990.14
  5. Step 5: Solve for x
    x = 49,114,990.14/7,716.20
  6. Step 6: Final answer
    x = 6,365.18

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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.