Home / 8,516.09-12,773.61-3,178.25

Finding the Fourth Proportional to 8,516.09, 12,773.61 and 3,178.25

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Solution

The fourth proportional to 8,516.09, 12,773.61 and 3,178.25 is: 4,767.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.09 : 12,773.61 = 3,178.25 : x
  2. Step 2: Convert to fraction form
    8,516.09/12,773.61 = 3,178.25/x
  3. Step 3: Cross multiply
    8,516.09x = 12,773.61 × 3,178.25
  4. Step 4: Simplify right side
    8,516.09x = 40,597,662.11
  5. Step 5: Solve for x
    x = 40,597,662.11/8,516.09
  6. Step 6: Final answer
    x = 4,767.17

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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.