Home / 11,120.60-16,680.90-6,965.30

Finding the Fourth Proportional to 11,120.60, 16,680.90 and 6,965.30

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Solution

The fourth proportional to 11,120.60, 16,680.90 and 6,965.30 is: 10,447.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.60 : 16,680.90 = 6,965.30 : x
  2. Step 2: Convert to fraction form
    11,120.60/16,680.90 = 6,965.30/x
  3. Step 3: Cross multiply
    11,120.60x = 16,680.90 × 6,965.30
  4. Step 4: Simplify right side
    11,120.60x = 116,187,472.77
  5. Step 5: Solve for x
    x = 116,187,472.77/11,120.60
  6. Step 6: Final answer
    x = 10,447.95

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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.