Home / 11,942.45-16,480.10-6,636.95

Finding the Fourth Proportional to 11,942.45, 16,480.10 and 6,636.95

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Solution

The fourth proportional to 11,942.45, 16,480.10 and 6,636.95 is: 9,158.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.45 : 16,480.10 = 6,636.95 : x
  2. Step 2: Convert to fraction form
    11,942.45/16,480.10 = 6,636.95/x
  3. Step 3: Cross multiply
    11,942.45x = 16,480.10 × 6,636.95
  4. Step 4: Simplify right side
    11,942.45x = 109,377,566.51
  5. Step 5: Solve for x
    x = 109,377,566.51/11,942.45
  6. Step 6: Final answer
    x = 9,158.72

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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.