Home / 8,764.25-12,093.57-5,178.78

Finding the Fourth Proportional to 8,764.25, 12,093.57 and 5,178.78

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Solution

The fourth proportional to 8,764.25, 12,093.57 and 5,178.78 is: 7,146.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.25 : 12,093.57 = 5,178.78 : x
  2. Step 2: Convert to fraction form
    8,764.25/12,093.57 = 5,178.78/x
  3. Step 3: Cross multiply
    8,764.25x = 12,093.57 × 5,178.78
  4. Step 4: Simplify right side
    8,764.25x = 62,629,938.44
  5. Step 5: Solve for x
    x = 62,629,938.44/8,764.25
  6. Step 6: Final answer
    x = 7,146.07

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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.