Home / 12,288.12-16,951.14-8,310.57

Finding the Fourth Proportional to 12,288.12, 16,951.14 and 8,310.57

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Solution

The fourth proportional to 12,288.12, 16,951.14 and 8,310.57 is: 11,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.12 : 16,951.14 = 8,310.57 : x
  2. Step 2: Convert to fraction form
    12,288.12/16,951.14 = 8,310.57/x
  3. Step 3: Cross multiply
    12,288.12x = 16,951.14 × 8,310.57
  4. Step 4: Simplify right side
    12,288.12x = 140,873,635.55
  5. Step 5: Solve for x
    x = 140,873,635.55/12,288.12
  6. Step 6: Final answer
    x = 11,464.21

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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.