Home / 8,716.75-12,028.73-4,939.70

Finding the Fourth Proportional to 8,716.75, 12,028.73 and 4,939.70

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Solution

The fourth proportional to 8,716.75, 12,028.73 and 4,939.70 is: 6,816.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.75 : 12,028.73 = 4,939.70 : x
  2. Step 2: Convert to fraction form
    8,716.75/12,028.73 = 4,939.70/x
  3. Step 3: Cross multiply
    8,716.75x = 12,028.73 × 4,939.70
  4. Step 4: Simplify right side
    8,716.75x = 59,418,263.55
  5. Step 5: Solve for x
    x = 59,418,263.55/8,716.75
  6. Step 6: Final answer
    x = 6,816.56

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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.