Home / 12,093.84-16,679.60-8,520.64

Finding the Fourth Proportional to 12,093.84, 16,679.60 and 8,520.64

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Solution

The fourth proportional to 12,093.84, 16,679.60 and 8,520.64 is: 11,751.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,093.84 : 16,679.60 = 8,520.64 : x
  2. Step 2: Convert to fraction form
    12,093.84/16,679.60 = 8,520.64/x
  3. Step 3: Cross multiply
    12,093.84x = 16,679.60 × 8,520.64
  4. Step 4: Simplify right side
    12,093.84x = 142,120,866.94
  5. Step 5: Solve for x
    x = 142,120,866.94/12,093.84
  6. Step 6: Final answer
    x = 11,751.51

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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.