Home / 12,155.54-16,774.68-6,850.44

Finding the Fourth Proportional to 12,155.54, 16,774.68 and 6,850.44

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Solution

The fourth proportional to 12,155.54, 16,774.68 and 6,850.44 is: 9,453.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155.54 : 16,774.68 = 6,850.44 : x
  2. Step 2: Convert to fraction form
    12,155.54/16,774.68 = 6,850.44/x
  3. Step 3: Cross multiply
    12,155.54x = 16,774.68 × 6,850.44
  4. Step 4: Simplify right side
    12,155.54x = 114,913,938.86
  5. Step 5: Solve for x
    x = 114,913,938.86/12,155.54
  6. Step 6: Final answer
    x = 9,453.63

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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.